Home / 5,578,279.20-8,366,500.26-5,215,149.72

Finding the Fourth Proportional to 5,578,279.20, 8,366,500.26 and 5,215,149.72

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Solution

The fourth proportional to 5,578,279.20, 8,366,500.26 and 5,215,149.72 is: 7,821,865.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,578,279.20 : 8,366,500.26 = 5,215,149.72 : x
  2. Step 2: Convert to fraction form
    5,578,279.20/8,366,500.26 = 5,215,149.72/x
  3. Step 3: Cross multiply
    5,578,279.20x = 8,366,500.26 × 5,215,149.72
  4. Step 4: Simplify right side
    5,578,279.20x = 43,632,551,488,318.92
  5. Step 5: Solve for x
    x = 43,632,551,488,318.92/5,578,279.20
  6. Step 6: Final answer
    x = 7,821,865.83

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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.