Home / 8,179,415.20-12,269,122.80-2,499,630.40

Finding the Fourth Proportional to 8,179,415.20, 12,269,122.80 and 2,499,630.40

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Solution

The fourth proportional to 8,179,415.20, 12,269,122.80 and 2,499,630.40 is: 3,749,445.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,179,415.20 : 12,269,122.80 = 2,499,630.40 : x
  2. Step 2: Convert to fraction form
    8,179,415.20/12,269,122.80 = 2,499,630.40/x
  3. Step 3: Cross multiply
    8,179,415.20x = 12,269,122.80 × 2,499,630.40
  4. Step 4: Simplify right side
    8,179,415.20x = 30,668,272,332,213.12
  5. Step 5: Solve for x
    x = 30,668,272,332,213.12/8,179,415.20
  6. Step 6: Final answer
    x = 3,749,445.60

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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.