Home / 12,123,666.12-18,188,493.30-3,603,966.60

Finding the Fourth Proportional to 12,123,666.12, 18,188,493.30 and 3,603,966.60

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Solution

The fourth proportional to 12,123,666.12, 18,188,493.30 and 3,603,966.60 is: 5,406,839.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,123,666.12 : 18,188,493.30 = 3,603,966.60 : x
  2. Step 2: Convert to fraction form
    12,123,666.12/18,188,493.30 = 3,603,966.60/x
  3. Step 3: Cross multiply
    12,123,666.12x = 18,188,493.30 × 3,603,966.60
  4. Step 4: Simplify right side
    12,123,666.12x = 65,550,722,357,523.78
  5. Step 5: Solve for x
    x = 65,550,722,357,523.78/12,123,666.12
  6. Step 6: Final answer
    x = 5,406,839.95

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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.