Finding the Fourth Proportional to 151,640,994,039.40, 209,271,149,851.38 and 83,975,584,257.50

Step by Step Solution

1. Step 1: Write the proportion equation
   151,640,994,039.40 : 209,271,149,851.38 = 83,975,584,257.50 : x
2. Step 2: Convert to fraction form
   151,640,994,039.40/209,271,149,851.38 = 83,975,584,257.50/x
3. Step 3: Cross multiply
   151,640,994,039.40x = 209,271,149,851.38 × 83,975,584,257.50
4. Step 4: Simplify right side
   151,640,994,039.40x = 17,573,667,077,007,423,307,776
5. Step 5: Solve for x
   x = 17,573,667,077,007,423,307,776/151,640,994,039.40
6. Step 6: Final answer
   x = 115,889,949,075.65