@graphicdigital: Ghanaian billionaire and brother of Ghana President John Dramani Mahama, Ibrahim Mahama meets his "master" Africa's second richest man Abdul Rabiu in Nigeria. As usual they both refused to accept the boss title but.... Bloomberg says Abdul Samad Rabiu is Africa's 2nd richest man at $19.1 billion while Forbes ranks him 4th at $15.3 billion. Here is why both are right --- Bloomberg ranks Abdul Samad Rabiu as Africa's second richest man at $19.1 billion, ahead of Johann Rupert, while Forbes puts him fourth at $15.3 billion. The gap comes down to how each counts his Nigerian stock market wealth. Ibrahim Mahama's net worth is officially unknown but he recently acquired a profitable gold mone which sent him into billionaire status #Ghana #Nigeria