Home / 20,674,439.60-28,523,073.96-20,642,553.68

Finding the Fourth Proportional to 20,674,439.60, 28,523,073.96 and 20,642,553.68

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Solution

The fourth proportional to 20,674,439.60, 28,523,073.96 and 20,642,553.68 is: 28,479,083.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,674,439.60 : 28,523,073.96 = 20,642,553.68 : x
  2. Step 2: Convert to fraction form
    20,674,439.60/28,523,073.96 = 20,642,553.68/x
  3. Step 3: Cross multiply
    20,674,439.60x = 28,523,073.96 × 20,642,553.68
  4. Step 4: Simplify right side
    20,674,439.60x = 588,789,085,337,910.12
  5. Step 5: Solve for x
    x = 588,789,085,337,910.12/20,674,439.60
  6. Step 6: Final answer
    x = 28,479,083.19

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1.5x scale

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.