Home / 80,458,250.90-120,687,376.35-72,396,094.10

Finding the Fourth Proportional to 80,458,250.90, 120,687,376.35 and 72,396,094.10

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Solution

The fourth proportional to 80,458,250.90, 120,687,376.35 and 72,396,094.10 is: 108,594,141.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,458,250.90 : 120,687,376.35 = 72,396,094.10 : x
  2. Step 2: Convert to fraction form
    80,458,250.90/120,687,376.35 = 72,396,094.10/x
  3. Step 3: Cross multiply
    80,458,250.90x = 120,687,376.35 × 72,396,094.10
  4. Step 4: Simplify right side
    80,458,250.90x = 8,737,294,654,916,713
  5. Step 5: Solve for x
    x = 8,737,294,654,916,713/80,458,250.90
  6. Step 6: Final answer
    x = 108,594,141.15

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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.