Home / 86,016,847.20-129,025,270.80-38,241,103.20

Finding the Fourth Proportional to 86,016,847.20, 129,025,270.80 and 38,241,103.20

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Solution

The fourth proportional to 86,016,847.20, 129,025,270.80 and 38,241,103.20 is: 57,361,654.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,016,847.20 : 129,025,270.80 = 38,241,103.20 : x
  2. Step 2: Convert to fraction form
    86,016,847.20/129,025,270.80 = 38,241,103.20/x
  3. Step 3: Cross multiply
    86,016,847.20x = 129,025,270.80 × 38,241,103.20
  4. Step 4: Simplify right side
    86,016,847.20x = 4,934,068,696,070,747
  5. Step 5: Solve for x
    x = 4,934,068,696,070,747/86,016,847.20
  6. Step 6: Final answer
    x = 57,361,654.80

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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.