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Finding the Fourth Proportional to 800,442,793.80, 1,200,664,190.70 and 567,990,500.40

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Solution

The fourth proportional to 800,442,793.80, 1,200,664,190.70 and 567,990,500.40 is: 851,985,750.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,442,793.80 : 1,200,664,190.70 = 567,990,500.40 : x
  2. Step 2: Convert to fraction form
    800,442,793.80/1,200,664,190.70 = 567,990,500.40/x
  3. Step 3: Cross multiply
    800,442,793.80x = 1,200,664,190.70 × 567,990,500.40
  4. Step 4: Simplify right side
    800,442,793.80x = 681,965,854,488,054,016
  5. Step 5: Solve for x
    x = 681,965,854,488,054,016/800,442,793.80
  6. Step 6: Final answer
    x = 851,985,750.60

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Double scale
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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.