Home / 8,168,380.20-12,252,570.30-7,286,581.80

Finding the Fourth Proportional to 8,168,380.20, 12,252,570.30 and 7,286,581.80

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Solution

The fourth proportional to 8,168,380.20, 12,252,570.30 and 7,286,581.80 is: 10,929,872.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,168,380.20 : 12,252,570.30 = 7,286,581.80 : x
  2. Step 2: Convert to fraction form
    8,168,380.20/12,252,570.30 = 7,286,581.80/x
  3. Step 3: Cross multiply
    8,168,380.20x = 12,252,570.30 × 7,286,581.80
  4. Step 4: Simplify right side
    8,168,380.20x = 89,279,355,751,200.55
  5. Step 5: Solve for x
    x = 89,279,355,751,200.55/8,168,380.20
  6. Step 6: Final answer
    x = 10,929,872.70

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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.