Home / 20,572,531.13-28,389,767.94-11,280,177.61

Finding the Fourth Proportional to 20,572,531.13, 28,389,767.94 and 11,280,177.61

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Solution

The fourth proportional to 20,572,531.13, 28,389,767.94 and 11,280,177.61 is: 15,566,466.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,572,531.13 : 28,389,767.94 = 11,280,177.61 : x
  2. Step 2: Convert to fraction form
    20,572,531.13/28,389,767.94 = 11,280,177.61/x
  3. Step 3: Cross multiply
    20,572,531.13x = 28,389,767.94 × 11,280,177.61
  4. Step 4: Simplify right side
    20,572,531.13x = 320,241,624,598,909.44
  5. Step 5: Solve for x
    x = 320,241,624,598,909.44/20,572,531.13
  6. Step 6: Final answer
    x = 15,566,466.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.