Home / 10,315,062.10-15,489,117.15-8,202,711.70

Finding the Fourth Proportional to 10,315,062.10, 15,489,117.15 and 8,202,711.70

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Solution

The fourth proportional to 10,315,062.10, 15,489,117.15 and 8,202,711.70 is: 12,317,207.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,315,062.10 : 15,489,117.15 = 8,202,711.70 : x
  2. Step 2: Convert to fraction form
    10,315,062.10/15,489,117.15 = 8,202,711.70/x
  3. Step 3: Cross multiply
    10,315,062.10x = 15,489,117.15 × 8,202,711.70
  4. Step 4: Simplify right side
    10,315,062.10x = 127,052,762,468,975.66
  5. Step 5: Solve for x
    x = 127,052,762,468,975.66/10,315,062.10
  6. Step 6: Final answer
    x = 12,317,207.71

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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.