Home / 18,379,613.60-27,575,325.30-12,321,186.20

Finding the Fourth Proportional to 18,379,613.60, 27,575,325.30 and 12,321,186.20

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Solution

The fourth proportional to 18,379,613.60, 27,575,325.30 and 12,321,186.20 is: 18,485,737.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,379,613.60 : 27,575,325.30 = 12,321,186.20 : x
  2. Step 2: Convert to fraction form
    18,379,613.60/27,575,325.30 = 12,321,186.20/x
  3. Step 3: Cross multiply
    18,379,613.60x = 27,575,325.30 × 12,321,186.20
  4. Step 4: Simplify right side
    18,379,613.60x = 339,760,717,546,870.88
  5. Step 5: Solve for x
    x = 339,760,717,546,870.88/18,379,613.60
  6. Step 6: Final answer
    x = 18,485,737.78

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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.