Home / 82,940,016.80-124,350,996.72-31,778,775.20

Finding the Fourth Proportional to 82,940,016.80, 124,350,996.72 and 31,778,775.20

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Solution

The fourth proportional to 82,940,016.80, 124,350,996.72 and 31,778,775.20 is: 47,645,545.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,940,016.80 : 124,350,996.72 = 31,778,775.20 : x
  2. Step 2: Convert to fraction form
    82,940,016.80/124,350,996.72 = 31,778,775.20/x
  3. Step 3: Cross multiply
    82,940,016.80x = 124,350,996.72 × 31,778,775.20
  4. Step 4: Simplify right side
    82,940,016.80x = 3,951,722,370,660,817
  5. Step 5: Solve for x
    x = 3,951,722,370,660,817/82,940,016.80
  6. Step 6: Final answer
    x = 47,645,545.82

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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.