Home / 20,916,793.56-31,278,873.21-19,896,426.84

Finding the Fourth Proportional to 20,916,793.56, 31,278,873.21 and 19,896,426.84

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Solution

The fourth proportional to 20,916,793.56, 31,278,873.21 and 19,896,426.84 is: 29,753,021.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,916,793.56 : 31,278,873.21 = 19,896,426.84 : x
  2. Step 2: Convert to fraction form
    20,916,793.56/31,278,873.21 = 19,896,426.84/x
  3. Step 3: Cross multiply
    20,916,793.56x = 31,278,873.21 × 19,896,426.84
  4. Step 4: Simplify right side
    20,916,793.56x = 622,337,812,304,006.62
  5. Step 5: Solve for x
    x = 622,337,812,304,006.62/20,916,793.56
  6. Step 6: Final answer
    x = 29,753,021.69

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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.