Home / 8,531,989.20-12,797,983.80-5,508,680.40

Finding the Fourth Proportional to 8,531,989.20, 12,797,983.80 and 5,508,680.40

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Solution

The fourth proportional to 8,531,989.20, 12,797,983.80 and 5,508,680.40 is: 8,263,020.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,531,989.20 : 12,797,983.80 = 5,508,680.40 : x
  2. Step 2: Convert to fraction form
    8,531,989.20/12,797,983.80 = 5,508,680.40/x
  3. Step 3: Cross multiply
    8,531,989.20x = 12,797,983.80 × 5,508,680.40
  4. Step 4: Simplify right side
    8,531,989.20x = 70,500,002,518,577.53
  5. Step 5: Solve for x
    x = 70,500,002,518,577.53/8,531,989.20
  6. Step 6: Final answer
    x = 8,263,020.60

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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.