Home / 38,142,375.12-57,220,599.96-12,585,151.44

Finding the Fourth Proportional to 38,142,375.12, 57,220,599.96 and 12,585,151.44

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Solution

The fourth proportional to 38,142,375.12, 57,220,599.96 and 12,585,151.44 is: 18,880,049.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,142,375.12 : 57,220,599.96 = 12,585,151.44 : x
  2. Step 2: Convert to fraction form
    38,142,375.12/57,220,599.96 = 12,585,151.44/x
  3. Step 3: Cross multiply
    38,142,375.12x = 57,220,599.96 × 12,585,151.44
  4. Step 4: Simplify right side
    38,142,375.12x = 720,129,915,984,257.88
  5. Step 5: Solve for x
    x = 720,129,915,984,257.88/38,142,375.12
  6. Step 6: Final answer
    x = 18,880,049.12

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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.