Home / 12,129,747.30-18,194,620.95-11,137,724.10

Finding the Fourth Proportional to 12,129,747.30, 18,194,620.95 and 11,137,724.10

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Solution

The fourth proportional to 12,129,747.30, 18,194,620.95 and 11,137,724.10 is: 16,706,586.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,129,747.30 : 18,194,620.95 = 11,137,724.10 : x
  2. Step 2: Convert to fraction form
    12,129,747.30/18,194,620.95 = 11,137,724.10/x
  3. Step 3: Cross multiply
    12,129,747.30x = 18,194,620.95 × 11,137,724.10
  4. Step 4: Simplify right side
    12,129,747.30x = 202,646,668,245,179.88
  5. Step 5: Solve for x
    x = 202,646,668,245,179.88/12,129,747.30
  6. Step 6: Final answer
    x = 16,706,586.15

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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.