Home / 20,123,600.78-27,769,168.23-11,421,950.60

Finding the Fourth Proportional to 20,123,600.78, 27,769,168.23 and 11,421,950.60

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Solution

The fourth proportional to 20,123,600.78, 27,769,168.23 and 11,421,950.60 is: 15,761,496.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,123,600.78 : 27,769,168.23 = 11,421,950.60 : x
  2. Step 2: Convert to fraction form
    20,123,600.78/27,769,168.23 = 11,421,950.60/x
  3. Step 3: Cross multiply
    20,123,600.78x = 27,769,168.23 × 11,421,950.60
  4. Step 4: Simplify right side
    20,123,600.78x = 317,178,067,726,149.44
  5. Step 5: Solve for x
    x = 317,178,067,726,149.44/20,123,600.78
  6. Step 6: Final answer
    x = 15,761,496.72

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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.