Home / 20,711,853.76-31,067,753.76-5,565,785.28

Finding the Fourth Proportional to 20,711,853.76, 31,067,753.76 and 5,565,785.28

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Solution

The fourth proportional to 20,711,853.76, 31,067,753.76 and 5,565,785.28 is: 8,348,670.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,711,853.76 : 31,067,753.76 = 5,565,785.28 : x
  2. Step 2: Convert to fraction form
    20,711,853.76/31,067,753.76 = 5,565,785.28/x
  3. Step 3: Cross multiply
    20,711,853.76x = 31,067,753.76 × 5,565,785.28
  4. Step 4: Simplify right side
    20,711,853.76x = 172,916,446,560,072.66
  5. Step 5: Solve for x
    x = 172,916,446,560,072.66/20,711,853.76
  6. Step 6: Final answer
    x = 8,348,670.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.