Home / 129,277,023.40-193,915,535.10-80,904,082.60

Finding the Fourth Proportional to 129,277,023.40, 193,915,535.10 and 80,904,082.60

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Solution

The fourth proportional to 129,277,023.40, 193,915,535.10 and 80,904,082.60 is: 121,356,123.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,277,023.40 : 193,915,535.10 = 80,904,082.60 : x
  2. Step 2: Convert to fraction form
    129,277,023.40/193,915,535.10 = 80,904,082.60/x
  3. Step 3: Cross multiply
    129,277,023.40x = 193,915,535.10 × 80,904,082.60
  4. Step 4: Simplify right side
    129,277,023.40x = 15,688,558,469,153,598
  5. Step 5: Solve for x
    x = 15,688,558,469,153,598/129,277,023.40
  6. Step 6: Final answer
    x = 121,356,123.90

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Why These Related Problems?

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