Home / 99,658,003.80-149,508,000.90-42,120,658.20

Finding the Fourth Proportional to 99,658,003.80, 149,508,000.90 and 42,120,658.20

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Solution

The fourth proportional to 99,658,003.80, 149,508,000.90 and 42,120,658.20 is: 63,189,860.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,658,003.80 : 149,508,000.90 = 42,120,658.20 : x
  2. Step 2: Convert to fraction form
    99,658,003.80/149,508,000.90 = 42,120,658.20/x
  3. Step 3: Cross multiply
    99,658,003.80x = 149,508,000.90 × 42,120,658.20
  4. Step 4: Simplify right side
    99,658,003.80x = 6,297,375,404,074,193
  5. Step 5: Solve for x
    x = 6,297,375,404,074,193/99,658,003.80
  6. Step 6: Final answer
    x = 63,189,860.96

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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.