Home / 440,287,924.78-660,432,010.29-129,395,523.86

Finding the Fourth Proportional to 440,287,924.78, 660,432,010.29 and 129,395,523.86

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Solution

The fourth proportional to 440,287,924.78, 660,432,010.29 and 129,395,523.86 is: 194,093,321.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,287,924.78 : 660,432,010.29 = 129,395,523.86 : x
  2. Step 2: Convert to fraction form
    440,287,924.78/660,432,010.29 = 129,395,523.86/x
  3. Step 3: Cross multiply
    440,287,924.78x = 660,432,010.29 × 129,395,523.86
  4. Step 4: Simplify right side
    440,287,924.78x = 85,456,945,945,387,456
  5. Step 5: Solve for x
    x = 85,456,945,945,387,456/440,287,924.78
  6. Step 6: Final answer
    x = 194,093,321.97

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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.