Home / 20,729,552.40-31,084,997.40-7,945,808.40

Finding the Fourth Proportional to 20,729,552.40, 31,084,997.40 and 7,945,808.40

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Solution

The fourth proportional to 20,729,552.40, 31,084,997.40 and 7,945,808.40 is: 11,915,135.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,729,552.40 : 31,084,997.40 = 7,945,808.40 : x
  2. Step 2: Convert to fraction form
    20,729,552.40/31,084,997.40 = 7,945,808.40/x
  3. Step 3: Cross multiply
    20,729,552.40x = 31,084,997.40 × 7,945,808.40
  4. Step 4: Simplify right side
    20,729,552.40x = 246,995,433,454,898.16
  5. Step 5: Solve for x
    x = 246,995,433,454,898.16/20,729,552.40
  6. Step 6: Final answer
    x = 11,915,135.87

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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.