Home / 131,940,399.30-198,288,512.55-115,312,200.90

Finding the Fourth Proportional to 131,940,399.30, 198,288,512.55 and 115,312,200.90

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Solution

The fourth proportional to 131,940,399.30, 198,288,512.55 and 115,312,200.90 is: 173,298,587.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,940,399.30 : 198,288,512.55 = 115,312,200.90 : x
  2. Step 2: Convert to fraction form
    131,940,399.30/198,288,512.55 = 115,312,200.90/x
  3. Step 3: Cross multiply
    131,940,399.30x = 198,288,512.55 × 115,312,200.90
  4. Step 4: Simplify right side
    131,940,399.30x = 22,865,084,795,327,772
  5. Step 5: Solve for x
    x = 22,865,084,795,327,772/131,940,399.30
  6. Step 6: Final answer
    x = 173,298,587.22

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.