Home / 72,655,000.90-108,859,176.15-43,840,590.10

Finding the Fourth Proportional to 72,655,000.90, 108,859,176.15 and 43,840,590.10

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Solution

The fourth proportional to 72,655,000.90, 108,859,176.15 and 43,840,590.10 is: 65,686,469.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,655,000.90 : 108,859,176.15 = 43,840,590.10 : x
  2. Step 2: Convert to fraction form
    72,655,000.90/108,859,176.15 = 43,840,590.10/x
  3. Step 3: Cross multiply
    72,655,000.90x = 108,859,176.15 × 43,840,590.10
  4. Step 4: Simplify right side
    72,655,000.90x = 4,772,450,520,215,847
  5. Step 5: Solve for x
    x = 4,772,450,520,215,847/72,655,000.90
  6. Step 6: Final answer
    x = 65,686,469.77

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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.