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Finding the Fourth Proportional to 8,691,811.80, 13,037,717.70 and 8,323,229.40

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Solution

The fourth proportional to 8,691,811.80, 13,037,717.70 and 8,323,229.40 is: 12,484,844.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,691,811.80 : 13,037,717.70 = 8,323,229.40 : x
  2. Step 2: Convert to fraction form
    8,691,811.80/13,037,717.70 = 8,323,229.40/x
  3. Step 3: Cross multiply
    8,691,811.80x = 13,037,717.70 × 8,323,229.40
  4. Step 4: Simplify right side
    8,691,811.80x = 108,515,915,269,540.38
  5. Step 5: Solve for x
    x = 108,515,915,269,540.38/8,691,811.80
  6. Step 6: Final answer
    x = 12,484,844.10

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1.5x scale

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.