Home / 8,149,333.20-12,223,999.80-7,228,168.80

Finding the Fourth Proportional to 8,149,333.20, 12,223,999.80 and 7,228,168.80

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Solution

The fourth proportional to 8,149,333.20, 12,223,999.80 and 7,228,168.80 is: 10,842,253.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,149,333.20 : 12,223,999.80 = 7,228,168.80 : x
  2. Step 2: Convert to fraction form
    8,149,333.20/12,223,999.80 = 7,228,168.80/x
  3. Step 3: Cross multiply
    8,149,333.20x = 12,223,999.80 × 7,228,168.80
  4. Step 4: Simplify right side
    8,149,333.20x = 88,357,133,965,566.25
  5. Step 5: Solve for x
    x = 88,357,133,965,566.25/8,149,333.20
  6. Step 6: Final answer
    x = 10,842,253.20

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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.