It has been found that burning 1 liter, or 0.74 kg, of gasoline reduces its rest mass by 3.8 x 10-10 kg. In an atomic bomb, 8. x 1013 J of energy are released for every kg of nuclear fuel undergoing fission the same energy released in the explosion of roughly 20,000 tons of TNT. Find the ratio of the fractional decrease in mass of the nuclear fuel to the fractional decrease in mass of gasoline when each is burned.