Home / 20,548,781.74-28,337,757.32-12,287,531.40

Finding the Fourth Proportional to 20,548,781.74, 28,337,757.32 and 12,287,531.40

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Solution

The fourth proportional to 20,548,781.74, 28,337,757.32 and 12,287,531.40 is: 16,945,096.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,548,781.74 : 28,337,757.32 = 12,287,531.40 : x
  2. Step 2: Convert to fraction form
    20,548,781.74/28,337,757.32 = 12,287,531.40/x
  3. Step 3: Cross multiply
    20,548,781.74x = 28,337,757.32 × 12,287,531.40
  4. Step 4: Simplify right side
    20,548,781.74x = 348,201,082,799,532.12
  5. Step 5: Solve for x
    x = 348,201,082,799,532.12/20,548,781.74
  6. Step 6: Final answer
    x = 16,945,096.17

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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.