Home / 8,149,231.80-12,223,847.70-5,279,450.40

Finding the Fourth Proportional to 8,149,231.80, 12,223,847.70 and 5,279,450.40

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Solution

The fourth proportional to 8,149,231.80, 12,223,847.70 and 5,279,450.40 is: 7,919,175.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,149,231.80 : 12,223,847.70 = 5,279,450.40 : x
  2. Step 2: Convert to fraction form
    8,149,231.80/12,223,847.70 = 5,279,450.40/x
  3. Step 3: Cross multiply
    8,149,231.80x = 12,223,847.70 × 5,279,450.40
  4. Step 4: Simplify right side
    8,149,231.80x = 64,535,197,629,304.08
  5. Step 5: Solve for x
    x = 64,535,197,629,304.08/8,149,231.80
  6. Step 6: Final answer
    x = 7,919,175.60

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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.