Home / 7,990,234.80-11,985,352.20-3,198,663.60

Finding the Fourth Proportional to 7,990,234.80, 11,985,352.20 and 3,198,663.60

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Solution

The fourth proportional to 7,990,234.80, 11,985,352.20 and 3,198,663.60 is: 4,797,995.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,990,234.80 : 11,985,352.20 = 3,198,663.60 : x
  2. Step 2: Convert to fraction form
    7,990,234.80/11,985,352.20 = 3,198,663.60/x
  3. Step 3: Cross multiply
    7,990,234.80x = 11,985,352.20 × 3,198,663.60
  4. Step 4: Simplify right side
    7,990,234.80x = 38,337,109,815,319.92
  5. Step 5: Solve for x
    x = 38,337,109,815,319.92/7,990,234.80
  6. Step 6: Final answer
    x = 4,797,995.40

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Similar ratio
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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.