Home / 68,143,432.20-102,215,148.30-31,739,723.70

Finding the Fourth Proportional to 68,143,432.20, 102,215,148.30 and 31,739,723.70

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Solution

The fourth proportional to 68,143,432.20, 102,215,148.30 and 31,739,723.70 is: 47,609,585.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,143,432.20 : 102,215,148.30 = 31,739,723.70 : x
  2. Step 2: Convert to fraction form
    68,143,432.20/102,215,148.30 = 31,739,723.70/x
  3. Step 3: Cross multiply
    68,143,432.20x = 102,215,148.30 × 31,739,723.70
  4. Step 4: Simplify right side
    68,143,432.20x = 3,244,280,564,996,524.50
  5. Step 5: Solve for x
    x = 3,244,280,564,996,524.50/68,143,432.20
  6. Step 6: Final answer
    x = 47,609,585.55

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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.