|U.N. map of Nigeria...|
Even with oil prices declining, Nigeria's Folorunso Alakija, 64, has surpassed Oprah in wealth due to savvy expertise in business and fashion.
Living in Lagos, Alakija has been married to her husband, Modupe, since 1976 and has four children. It is estimated she is worth $7.3 billion, according to Allafrica.com.