Home / 20,927,665.28-31,392,088.40-5,781,596.78

Finding the Fourth Proportional to 20,927,665.28, 31,392,088.40 and 5,781,596.78

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Solution

The fourth proportional to 20,927,665.28, 31,392,088.40 and 5,781,596.78 is: 8,672,558.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,927,665.28 : 31,392,088.40 = 5,781,596.78 : x
  2. Step 2: Convert to fraction form
    20,927,665.28/31,392,088.40 = 5,781,596.78/x
  3. Step 3: Cross multiply
    20,927,665.28x = 31,392,088.40 × 5,781,596.78
  4. Step 4: Simplify right side
    20,927,665.28x = 181,496,397,025,046.94
  5. Step 5: Solve for x
    x = 181,496,397,025,046.94/20,927,665.28
  6. Step 6: Final answer
    x = 8,672,558.29

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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.