Home / 25,278,965.46-34,920,685.17-20,115,720.90

Finding the Fourth Proportional to 25,278,965.46, 34,920,685.17 and 20,115,720.90

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Solution

The fourth proportional to 25,278,965.46, 34,920,685.17 and 20,115,720.90 is: 27,788,113.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,278,965.46 : 34,920,685.17 = 20,115,720.90 : x
  2. Step 2: Convert to fraction form
    25,278,965.46/34,920,685.17 = 20,115,720.90/x
  3. Step 3: Cross multiply
    25,278,965.46x = 34,920,685.17 × 20,115,720.90
  4. Step 4: Simplify right side
    25,278,965.46x = 702,454,756,516,489
  5. Step 5: Solve for x
    x = 702,454,756,516,489/25,278,965.46
  6. Step 6: Final answer
    x = 27,788,113.31

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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.