Home / 20,757,613.40-31,136,420.10-13,591,251.80

Finding the Fourth Proportional to 20,757,613.40, 31,136,420.10 and 13,591,251.80

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Solution

The fourth proportional to 20,757,613.40, 31,136,420.10 and 13,591,251.80 is: 20,386,877.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,757,613.40 : 31,136,420.10 = 13,591,251.80 : x
  2. Step 2: Convert to fraction form
    20,757,613.40/31,136,420.10 = 13,591,251.80/x
  3. Step 3: Cross multiply
    20,757,613.40x = 31,136,420.10 × 13,591,251.80
  4. Step 4: Simplify right side
    20,757,613.40x = 423,182,925,729,681.25
  5. Step 5: Solve for x
    x = 423,182,925,729,681.25/20,757,613.40
  6. Step 6: Final answer
    x = 20,386,877.70

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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.