Home / 20,283,778.76-27,982,817.70-13,417,842.92

Finding the Fourth Proportional to 20,283,778.76, 27,982,817.70 and 13,417,842.92

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Solution

The fourth proportional to 20,283,778.76, 27,982,817.70 and 13,417,842.92 is: 18,510,803.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,283,778.76 : 27,982,817.70 = 13,417,842.92 : x
  2. Step 2: Convert to fraction form
    20,283,778.76/27,982,817.70 = 13,417,842.92/x
  3. Step 3: Cross multiply
    20,283,778.76x = 27,982,817.70 × 13,417,842.92
  4. Step 4: Simplify right side
    20,283,778.76x = 375,469,052,357,595.69
  5. Step 5: Solve for x
    x = 375,469,052,357,595.69/20,283,778.76
  6. Step 6: Final answer
    x = 18,510,803.97

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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.