Home / 87,648,001.20-131,472,001.80-82,945,076.40

Finding the Fourth Proportional to 87,648,001.20, 131,472,001.80 and 82,945,076.40

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Solution

The fourth proportional to 87,648,001.20, 131,472,001.80 and 82,945,076.40 is: 124,417,614.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,648,001.20 : 131,472,001.80 = 82,945,076.40 : x
  2. Step 2: Convert to fraction form
    87,648,001.20/131,472,001.80 = 82,945,076.40/x
  3. Step 3: Cross multiply
    87,648,001.20x = 131,472,001.80 × 82,945,076.40
  4. Step 4: Simplify right side
    87,648,001.20x = 10,904,955,233,761,938
  5. Step 5: Solve for x
    x = 10,904,955,233,761,938/87,648,001.20
  6. Step 6: Final answer
    x = 124,417,614.60

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1.5x scale

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.