Home / 20,757,609.40-31,136,414.10-13,591,247.80

Finding the Fourth Proportional to 20,757,609.40, 31,136,414.10 and 13,591,247.80

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Solution

The fourth proportional to 20,757,609.40, 31,136,414.10 and 13,591,247.80 is: 20,386,871.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,757,609.40 : 31,136,414.10 = 13,591,247.80 : x
  2. Step 2: Convert to fraction form
    20,757,609.40/31,136,414.10 = 13,591,247.80/x
  3. Step 3: Cross multiply
    20,757,609.40x = 31,136,414.10 × 13,591,247.80
  4. Step 4: Simplify right side
    20,757,609.40x = 423,182,719,636,514
  5. Step 5: Solve for x
    x = 423,182,719,636,514/20,757,609.40
  6. Step 6: Final answer
    x = 20,386,871.70

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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.