Finding the Fourth Proportional to 103,438,353,404.56, 155,157,530,106.81 and 103,438,353,404.56

Step by Step Solution

1. Step 1: Write the proportion equation
   103,438,353,404.56 : 155,157,530,106.81 = 103,438,353,404.56 : x
2. Step 2: Convert to fraction form
   103,438,353,404.56/155,157,530,106.81 = 103,438,353,404.56/x
3. Step 3: Cross multiply
   103,438,353,404.56x = 155,157,530,106.81 × 103,438,353,404.56
4. Step 4: Simplify right side
   103,438,353,404.56x = 16,049,239,432,566,870,638,592
5. Step 5: Solve for x
   x = 16,049,239,432,566,870,638,592/103,438,353,404.56
6. Step 6: Final answer
   x = 155,157,530,106.81