Home / 15,040,861.50-20,756,640.38-8,165,343.54

Finding the Fourth Proportional to 15,040,861.50, 20,756,640.38 and 8,165,343.54

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Solution

The fourth proportional to 15,040,861.50, 20,756,640.38 and 8,165,343.54 is: 11,268,310.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,040,861.50 : 20,756,640.38 = 8,165,343.54 : x
  2. Step 2: Convert to fraction form
    15,040,861.50/20,756,640.38 = 8,165,343.54/x
  3. Step 3: Cross multiply
    15,040,861.50x = 20,756,640.38 × 8,165,343.54
  4. Step 4: Simplify right side
    15,040,861.50x = 169,485,099,398,109.44
  5. Step 5: Solve for x
    x = 169,485,099,398,109.44/15,040,861.50
  6. Step 6: Final answer
    x = 11,268,310.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.