Home / 80,982,449.85-121,541,802.62-75,874,849.74

Finding the Fourth Proportional to 80,982,449.85, 121,541,802.62 and 75,874,849.74

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Solution

The fourth proportional to 80,982,449.85, 121,541,802.62 and 75,874,849.74 is: 113,876,105.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,982,449.85 : 121,541,802.62 = 75,874,849.74 : x
  2. Step 2: Convert to fraction form
    80,982,449.85/121,541,802.62 = 75,874,849.74/x
  3. Step 3: Cross multiply
    80,982,449.85x = 121,541,802.62 × 75,874,849.74
  4. Step 4: Simplify right side
    80,982,449.85x = 9,221,966,010,921,238
  5. Step 5: Solve for x
    x = 9,221,966,010,921,238/80,982,449.85
  6. Step 6: Final answer
    x = 113,876,105.60

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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.