Home / 330,861,697.20-496,292,545.80-85,217,857.20

Finding the Fourth Proportional to 330,861,697.20, 496,292,545.80 and 85,217,857.20

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Solution

The fourth proportional to 330,861,697.20, 496,292,545.80 and 85,217,857.20 is: 127,826,785.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,861,697.20 : 496,292,545.80 = 85,217,857.20 : x
  2. Step 2: Convert to fraction form
    330,861,697.20/496,292,545.80 = 85,217,857.20/x
  3. Step 3: Cross multiply
    330,861,697.20x = 496,292,545.80 × 85,217,857.20
  4. Step 4: Simplify right side
    330,861,697.20x = 42,292,987,297,408,864
  5. Step 5: Solve for x
    x = 42,292,987,297,408,864/330,861,697.20
  6. Step 6: Final answer
    x = 127,826,785.80

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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.