Home / 18,379,427.85-27,575,046.68-12,321,000.45

Finding the Fourth Proportional to 18,379,427.85, 27,575,046.68 and 12,321,000.45

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Solution

The fourth proportional to 18,379,427.85, 27,575,046.68 and 12,321,000.45 is: 18,485,459.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,379,427.85 : 27,575,046.68 = 12,321,000.45 : x
  2. Step 2: Convert to fraction form
    18,379,427.85/27,575,046.68 = 12,321,000.45/x
  3. Step 3: Cross multiply
    18,379,427.85x = 27,575,046.68 × 12,321,000.45
  4. Step 4: Simplify right side
    18,379,427.85x = 339,752,162,491,446
  5. Step 5: Solve for x
    x = 339,752,162,491,446/18,379,427.85
  6. Step 6: Final answer
    x = 18,485,459.14

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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.