Finding the Fourth Proportional to 5,506,754,111.80, 7,715,188,845.80 and 5,506,754,111.80

Step by Step Solution

1. Step 1: Write the proportion equation
   5,506,754,111.80 : 7,715,188,845.80 = 5,506,754,111.80 : x
2. Step 2: Convert to fraction form
   5,506,754,111.80/7,715,188,845.80 = 5,506,754,111.80/x
3. Step 3: Cross multiply
   5,506,754,111.80x = 7,715,188,845.80 × 5,506,754,111.80
4. Step 4: Simplify right side
   5,506,754,111.80x = 42,485,647,899,922,644,992
5. Step 5: Solve for x
   x = 42,485,647,899,922,644,992/5,506,754,111.80
6. Step 6: Final answer
   x = 7,715,188,845.80