Home / 20,916,798.72-31,377,006.40-5,770,729.92

Finding the Fourth Proportional to 20,916,798.72, 31,377,006.40 and 5,770,729.92

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Solution

The fourth proportional to 20,916,798.72, 31,377,006.40 and 5,770,729.92 is: 8,656,593.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,916,798.72 : 31,377,006.40 = 5,770,729.92 : x
  2. Step 2: Convert to fraction form
    20,916,798.72/31,377,006.40 = 5,770,729.92/x
  3. Step 3: Cross multiply
    20,916,798.72x = 31,377,006.40 × 5,770,729.92
  4. Step 4: Simplify right side
    20,916,798.72x = 181,068,229,632,511.47
  5. Step 5: Solve for x
    x = 181,068,229,632,511.47/20,916,798.72
  6. Step 6: Final answer
    x = 8,656,593.78

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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.