Home / 72,577,793.70-108,866,690.55-18,725,105.70

Finding the Fourth Proportional to 72,577,793.70, 108,866,690.55 and 18,725,105.70

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Solution

The fourth proportional to 72,577,793.70, 108,866,690.55 and 18,725,105.70 is: 28,087,658.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,577,793.70 : 108,866,690.55 = 18,725,105.70 : x
  2. Step 2: Convert to fraction form
    72,577,793.70/108,866,690.55 = 18,725,105.70/x
  3. Step 3: Cross multiply
    72,577,793.70x = 108,866,690.55 × 18,725,105.70
  4. Step 4: Simplify right side
    72,577,793.70x = 2,038,540,287,757,941
  5. Step 5: Solve for x
    x = 2,038,540,287,757,941/72,577,793.70
  6. Step 6: Final answer
    x = 28,087,658.55

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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.