Home / 84,392,472.30-126,588,708.45-80,991,249.90

Finding the Fourth Proportional to 84,392,472.30, 126,588,708.45 and 80,991,249.90

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Solution

The fourth proportional to 84,392,472.30, 126,588,708.45 and 80,991,249.90 is: 121,486,874.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,392,472.30 : 126,588,708.45 = 80,991,249.90 : x
  2. Step 2: Convert to fraction form
    84,392,472.30/126,588,708.45 = 80,991,249.90/x
  3. Step 3: Cross multiply
    84,392,472.30x = 126,588,708.45 × 80,991,249.90
  4. Step 4: Simplify right side
    84,392,472.30x = 10,252,577,720,592,192
  5. Step 5: Solve for x
    x = 10,252,577,720,592,192/84,392,472.30
  6. Step 6: Final answer
    x = 121,486,874.85

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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.