Home / 8,691,772.80-13,037,659.20-8,323,190.40

Finding the Fourth Proportional to 8,691,772.80, 13,037,659.20 and 8,323,190.40

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Solution

The fourth proportional to 8,691,772.80, 13,037,659.20 and 8,323,190.40 is: 12,484,785.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,691,772.80 : 13,037,659.20 = 8,323,190.40 : x
  2. Step 2: Convert to fraction form
    8,691,772.80/13,037,659.20 = 8,323,190.40/x
  3. Step 3: Cross multiply
    8,691,772.80x = 13,037,659.20 × 8,323,190.40
  4. Step 4: Simplify right side
    8,691,772.80x = 108,514,919,891,911.67
  5. Step 5: Solve for x
    x = 108,514,919,891,911.67/8,691,772.80
  6. Step 6: Final answer
    x = 12,484,785.60

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Double scale
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Similar ratio
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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.