Home / 8,316,080.80-12,474,121.20-7,854,186.40

Finding the Fourth Proportional to 8,316,080.80, 12,474,121.20 and 7,854,186.40

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Solution

The fourth proportional to 8,316,080.80, 12,474,121.20 and 7,854,186.40 is: 11,781,279.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,316,080.80 : 12,474,121.20 = 7,854,186.40 : x
  2. Step 2: Convert to fraction form
    8,316,080.80/12,474,121.20 = 7,854,186.40/x
  3. Step 3: Cross multiply
    8,316,080.80x = 12,474,121.20 × 7,854,186.40
  4. Step 4: Simplify right side
    8,316,080.80x = 97,974,073,080,991.67
  5. Step 5: Solve for x
    x = 97,974,073,080,991.67/8,316,080.80
  6. Step 6: Final answer
    x = 11,781,279.60

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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.