Home / 20,956,906.35-31,435,359.53-19,964,883.15

Finding the Fourth Proportional to 20,956,906.35, 31,435,359.53 and 19,964,883.15

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Solution

The fourth proportional to 20,956,906.35, 31,435,359.53 and 19,964,883.15 is: 29,947,324.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,956,906.35 : 31,435,359.53 = 19,964,883.15 : x
  2. Step 2: Convert to fraction form
    20,956,906.35/31,435,359.53 = 19,964,883.15/x
  3. Step 3: Cross multiply
    20,956,906.35x = 31,435,359.53 × 19,964,883.15
  4. Step 4: Simplify right side
    20,956,906.35x = 627,603,279,694,864.38
  5. Step 5: Solve for x
    x = 627,603,279,694,864.38/20,956,906.35
  6. Step 6: Final answer
    x = 29,947,324.73

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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.