Home / 8,314,456.80-12,471,685.20-5,109,189.60

Finding the Fourth Proportional to 8,314,456.80, 12,471,685.20 and 5,109,189.60

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Solution

The fourth proportional to 8,314,456.80, 12,471,685.20 and 5,109,189.60 is: 7,663,784.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,314,456.80 : 12,471,685.20 = 5,109,189.60 : x
  2. Step 2: Convert to fraction form
    8,314,456.80/12,471,685.20 = 5,109,189.60/x
  3. Step 3: Cross multiply
    8,314,456.80x = 12,471,685.20 × 5,109,189.60
  4. Step 4: Simplify right side
    8,314,456.80x = 63,720,204,318,313.91
  5. Step 5: Solve for x
    x = 63,720,204,318,313.91/8,314,456.80
  6. Step 6: Final answer
    x = 7,663,784.40

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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.