Home / 42,637,772.20-63,956,658.30-38,606,693.80

Finding the Fourth Proportional to 42,637,772.20, 63,956,658.30 and 38,606,693.80

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Solution

The fourth proportional to 42,637,772.20, 63,956,658.30 and 38,606,693.80 is: 57,910,040.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,637,772.20 : 63,956,658.30 = 38,606,693.80 : x
  2. Step 2: Convert to fraction form
    42,637,772.20/63,956,658.30 = 38,606,693.80/x
  3. Step 3: Cross multiply
    42,637,772.20x = 63,956,658.30 × 38,606,693.80
  4. Step 4: Simplify right side
    42,637,772.20x = 2,469,155,123,459,328
  5. Step 5: Solve for x
    x = 2,469,155,123,459,328/42,637,772.20
  6. Step 6: Final answer
    x = 57,910,040.70

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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.