Home / 21,137,426.12-29,170,366.11-20,168,874.90

Finding the Fourth Proportional to 21,137,426.12, 29,170,366.11 and 20,168,874.90

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Solution

The fourth proportional to 21,137,426.12, 29,170,366.11 and 20,168,874.90 is: 27,833,732.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,137,426.12 : 29,170,366.11 = 20,168,874.90 : x
  2. Step 2: Convert to fraction form
    21,137,426.12/29,170,366.11 = 20,168,874.90/x
  3. Step 3: Cross multiply
    21,137,426.12x = 29,170,366.11 × 20,168,874.90
  4. Step 4: Simplify right side
    21,137,426.12x = 588,333,464,859,789.62
  5. Step 5: Solve for x
    x = 588,333,464,859,789.62/21,137,426.12
  6. Step 6: Final answer
    x = 27,833,732.52

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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.