Home / 20,982,392.28-28,957,183.20-11,690,572.68

Finding the Fourth Proportional to 20,982,392.28, 28,957,183.20 and 11,690,572.68

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Solution

The fourth proportional to 20,982,392.28, 28,957,183.20 and 11,690,572.68 is: 16,133,815.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,982,392.28 : 28,957,183.20 = 11,690,572.68 : x
  2. Step 2: Convert to fraction form
    20,982,392.28/28,957,183.20 = 11,690,572.68/x
  3. Step 3: Cross multiply
    20,982,392.28x = 28,957,183.20 × 11,690,572.68
  4. Step 4: Simplify right side
    20,982,392.28x = 338,526,054,807,674.94
  5. Step 5: Solve for x
    x = 338,526,054,807,674.94/20,982,392.28
  6. Step 6: Final answer
    x = 16,133,815.93

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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.