Home / 12,485,412.20-18,723,452.70-8,687,613.80

Finding the Fourth Proportional to 12,485,412.20, 18,723,452.70 and 8,687,613.80

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Solution

The fourth proportional to 12,485,412.20, 18,723,452.70 and 8,687,613.80 is: 13,028,174.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,485,412.20 : 18,723,452.70 = 8,687,613.80 : x
  2. Step 2: Convert to fraction form
    12,485,412.20/18,723,452.70 = 8,687,613.80/x
  3. Step 3: Cross multiply
    12,485,412.20x = 18,723,452.70 × 8,687,613.80
  4. Step 4: Simplify right side
    12,485,412.20x = 162,662,126,060,167.28
  5. Step 5: Solve for x
    x = 162,662,126,060,167.28/12,485,412.20
  6. Step 6: Final answer
    x = 13,028,174.28

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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.