Home / 87,497,480.64-131,123,003.76-66,947,638.08

Finding the Fourth Proportional to 87,497,480.64, 131,123,003.76 and 66,947,638.08

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Solution

The fourth proportional to 87,497,480.64, 131,123,003.76 and 66,947,638.08 is: 100,327,178.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,497,480.64 : 131,123,003.76 = 66,947,638.08 : x
  2. Step 2: Convert to fraction form
    87,497,480.64/131,123,003.76 = 66,947,638.08/x
  3. Step 3: Cross multiply
    87,497,480.64x = 131,123,003.76 × 66,947,638.08
  4. Step 4: Simplify right side
    87,497,480.64x = 8,778,375,399,686,959
  5. Step 5: Solve for x
    x = 8,778,375,399,686,959/87,497,480.64
  6. Step 6: Final answer
    x = 100,327,178.97

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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.