No. 1 Carlos Slim HelĂș
Net Worth:$69 billion – As of March 2012
Source: Telecom , Age: 72 , Citizenship: Mexico
No. 2 Bill Gates
Net Worth:$61 billion – As of March 2012
Source: Microsoft, self-made , Age: 56 , Citizenship: U.S.
No. 3 Warren Buffett
Net Worth:$44 billion – As of March 2012
Source: Berkshire Hathaway, self-made , Age: 81 , Citizenship: U.S.
No. 4 Bernard Arnault
Net Worth:$41 billion – As of March 2012
Source: LVMH, inherited and growing , Age: 63 , Citizenship: France
No. 5 Amancio Ortega
Net Worth:$37.5 billion – As of March 2012
Source: Zara, self-made , Age: 75 , Citizenship: Spain
No. 6 Larry Ellison
Net Worth:$36 billion – As of March 2012
Source: Oracle, self-made , Age: 67 , Citizenship: U.S.
No. 7 Eike Batista
Net Worth:$30 billion – As of March 2012
Source: Mining, oil, self-made , Age: 55 , Citizenship: Brazil
No. 8 Stefan Persson
Net Worth:$26 billion – As of March 2012
Source: Hennes & Mauritz , Age: 64 , Citizenship: Sweden
No. 9 Li Ka-shing
Net Worth:$25.5 billion – As of March 2012
Source: Diversified, self-made , Age: 83 , Citizenship: Hong Kong
No. 10 Karl Albrecht
Net Worth:$25.4 billion – As of March 2012Source: Aldi, self-made , Age: 92 , Citizenship: Germany