Forbes magazine has estimated Mexican businessman Carlos Slim's wealth at US$73 billion (R664 billion) making him the world's richest man.
Forbes magazine has estimated Mexican businessman Carlos Slim's wealth at US$73 billion (R664 billion) making him the world's richest man.
Forbes magazine has estimated Microsoft founder Bill Gates' wealth at US$67 billion (R609 billion) making him the world's second richest man.
Forbes magazine has estimated Microsoft founder Bill Gates' wealth at US$67 billion (R609 billion) making him the world's second richest man.
Forbes magazine has estimated Spanish businessman Amancio Ortega wealth at US$57 billion (R518 billion) making him the world's third richest man.
Forbes magazine has estimated Spanish businessman Amancio Ortega wealth at US$57 billion (R518 billion) making him the world's third richest man.
Forbes magazine has estimated the wealth of Warren Buffet, chief executive of Berkshire Hathaway, at US$53.5 billion (R486 billion) making him the world's forth richest man.
Forbes magazine has estimated the wealth of Warren Buffet, chief executive of Berkshire Hathaway, at US$53.5 billion (R486 billion) making him the world's forth richest man.
Forbes magazine has estimated Oracle founder Larry Ellison's wealth at US$43 billion (R391 billion) making him the world's fifth richest man.
Forbes magazine has estimated Oracle founder Larry Ellison's wealth at US$43 billion (R391 billion) making him the world's fifth richest man.
Forbes magazine has estimated Nicky Oppenheimer and his family's wealth at US$6.5 billion (R59 billion) making him South Africa's second richest man.
Forbes magazine has estimated Nicky Oppenheimer and his family's wealth at US$6.5 billion (R59 billion) making him South Africa's second richest man.
261009 Shoprite chairman Christo Wiese.photo supplied
261009 Shoprite chairman Christo Wiese.photo supplied
16/11/2010 Patrice Motsepe Executive Chairman of ARM during his announcement of the fourth dividend payment and ditribution of funds to the beneficiaries of their BEE Trust held at Sandton JHB. (343)
Photo: Leon Nicholas
16/11/2010 Patrice Motsepe Executive Chairman of ARM during his announcement of the fourth dividend payment and ditribution of funds to the beneficiaries of their BEE Trust held at Sandton JHB. (343) Photo: Leon Nicholas

Forbes's 2013 list of the world's richest people includes 1,426 billionaires, a record number, with a total net worth of $5.4 trillion, up from $4.6 trillion in the previous ranking.