Home / 31,455,508.92-43,386,241.66-20,996,251.89

Finding the Fourth Proportional to 31,455,508.92, 43,386,241.66 and 20,996,251.89

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Solution

The fourth proportional to 31,455,508.92, 43,386,241.66 and 20,996,251.89 is: 28,959,902.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,455,508.92 : 43,386,241.66 = 20,996,251.89 : x
  2. Step 2: Convert to fraction form
    31,455,508.92/43,386,241.66 = 20,996,251.89/x
  3. Step 3: Cross multiply
    31,455,508.92x = 43,386,241.66 × 20,996,251.89
  4. Step 4: Simplify right side
    31,455,508.92x = 910,948,458,238,582.75
  5. Step 5: Solve for x
    x = 910,948,458,238,582.75/31,455,508.92
  6. Step 6: Final answer
    x = 28,959,902.08

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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.