Home / 7,245,120.60-10,867,680.90-5,438,221.20

Finding the Fourth Proportional to 7,245,120.60, 10,867,680.90 and 5,438,221.20

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Solution

The fourth proportional to 7,245,120.60, 10,867,680.90 and 5,438,221.20 is: 8,157,331.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,245,120.60 : 10,867,680.90 = 5,438,221.20 : x
  2. Step 2: Convert to fraction form
    7,245,120.60/10,867,680.90 = 5,438,221.20/x
  3. Step 3: Cross multiply
    7,245,120.60x = 10,867,680.90 × 5,438,221.20
  4. Step 4: Simplify right side
    7,245,120.60x = 59,100,852,665,215.09
  5. Step 5: Solve for x
    x = 59,100,852,665,215.09/7,245,120.60
  6. Step 6: Final answer
    x = 8,157,331.80

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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.