Home / 78,991,287.45-108,981,575.72-45,944,521.52

Finding the Fourth Proportional to 78,991,287.45, 108,981,575.72 and 45,944,521.52

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Solution

The fourth proportional to 78,991,287.45, 108,981,575.72 and 45,944,521.52 is: 63,388,083.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,991,287.45 : 108,981,575.72 = 45,944,521.52 : x
  2. Step 2: Convert to fraction form
    78,991,287.45/108,981,575.72 = 45,944,521.52/x
  3. Step 3: Cross multiply
    78,991,287.45x = 108,981,575.72 × 45,944,521.52
  4. Step 4: Simplify right side
    78,991,287.45x = 5,007,106,350,348,711
  5. Step 5: Solve for x
    x = 5,007,106,350,348,711/78,991,287.45
  6. Step 6: Final answer
    x = 63,388,083.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.