Please answer the following question: I am a movie director and I just received the following movie plot. Could you help me answer this question? If not, let me know by writing "Not answerable". Plot title: Kidnap Movie plot: Sonia (Minissha Lamba) lives with her mother, Mallika (Vidya Malvade) and grandmother (Reema Lagoo); her parents had divorced when she was ten. A fortnight before her eighteenth birthday, she picks an argument with her mother about her coming home late after the Christmas Party. Her mother tells her to stay within limits and arrive home in time. She is reluctant to abide by the rule and after much negotiation demands that she would listen to everything if she gets to meet her father. Then she leaves home and goes swimming in the sea to vent out. Far into the sea, she vanishes underwater. She wakes up in the evening in a cottage which has no exit. At first she doesn't believe that she has been kidnapped and thinks that her friends are playing a prank on her. The abductor Kabir (Imran Khan) tells her how she came there. When she went swimming in the open sea, he pulled her below the water surface and knocked her unconscious using a bottled chloroform. Meanwhile, everyone is worried at her home. Next morning, her mother receives a call from Kabir wherein he says that he is interested in speaking to Sonia's father, Vikrant Raina (Sanjay Dutt), a New York-based Indian business tycoon, with whom he has an old score to settle. Vikrant Raina is introduced as a cruel and heartless but a very wealthy man, worth USD 51.7billion. He is in India because he believes someone has emptied a large share of his money. Mallika meets him and tells him that Sonia has been kidnapped and that the kidnapper wants to speak only to him. Its around 3 p.m. when the kidnapper calls again. Vikrant and Sonia speak to each other for the first time in eight years. Kabir tells Vikrant that the money is safe in his account. Vikrant wants to know the reason behind the kidnapping. Kabir tells him that he has to do a few things as ransom to release his daughter. The very first of them is saying "Sorry" to Sister Margaret whom he would find on a train from Panvel at 4pm. Vikrant says its crazy to reach there in half an hour. But Kabir tells him... My question: What is Raina's net worth?
Answer:
USD 51.7 billion