Home / 8,149,237.80-12,223,856.70-5,279,456.40

Finding the Fourth Proportional to 8,149,237.80, 12,223,856.70 and 5,279,456.40

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Solution

The fourth proportional to 8,149,237.80, 12,223,856.70 and 5,279,456.40 is: 7,919,184.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,149,237.80 : 12,223,856.70 = 5,279,456.40 : x
  2. Step 2: Convert to fraction form
    8,149,237.80/12,223,856.70 = 5,279,456.40/x
  3. Step 3: Cross multiply
    8,149,237.80x = 12,223,856.70 × 5,279,456.40
  4. Step 4: Simplify right side
    8,149,237.80x = 64,535,318,487,497.88
  5. Step 5: Solve for x
    x = 64,535,318,487,497.88/8,149,237.80
  6. Step 6: Final answer
    x = 7,919,184.60

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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.