Home / 42,542,217.28-63,815,588.76-13,398,335.38

Finding the Fourth Proportional to 42,542,217.28, 63,815,588.76 and 13,398,335.38

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Solution

The fourth proportional to 42,542,217.28, 63,815,588.76 and 13,398,335.38 is: 20,098,215.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,542,217.28 : 63,815,588.76 = 13,398,335.38 : x
  2. Step 2: Convert to fraction form
    42,542,217.28/63,815,588.76 = 13,398,335.38/x
  3. Step 3: Cross multiply
    42,542,217.28x = 63,815,588.76 × 13,398,335.38
  4. Step 4: Simplify right side
    42,542,217.28x = 855,022,660,678,638.38
  5. Step 5: Solve for x
    x = 855,022,660,678,638.38/42,542,217.28
  6. Step 6: Final answer
    x = 20,098,215.73

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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.