Home / 79,987,672.20-119,981,508.30-49,376,670.60

Finding the Fourth Proportional to 79,987,672.20, 119,981,508.30 and 49,376,670.60

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Solution

The fourth proportional to 79,987,672.20, 119,981,508.30 and 49,376,670.60 is: 74,065,005.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,987,672.20 : 119,981,508.30 = 49,376,670.60 : x
  2. Step 2: Convert to fraction form
    79,987,672.20/119,981,508.30 = 49,376,670.60/x
  3. Step 3: Cross multiply
    79,987,672.20x = 119,981,508.30 × 49,376,670.60
  4. Step 4: Simplify right side
    79,987,672.20x = 5,924,287,413,420,266
  5. Step 5: Solve for x
    x = 5,924,287,413,420,266/79,987,672.20
  6. Step 6: Final answer
    x = 74,065,005.90

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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.