Home / 330,858,819.20-496,288,228.80-85,214,979.20

Finding the Fourth Proportional to 330,858,819.20, 496,288,228.80 and 85,214,979.20

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Solution

The fourth proportional to 330,858,819.20, 496,288,228.80 and 85,214,979.20 is: 127,822,468.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,858,819.20 : 496,288,228.80 = 85,214,979.20 : x
  2. Step 2: Convert to fraction form
    330,858,819.20/496,288,228.80 = 85,214,979.20/x
  3. Step 3: Cross multiply
    330,858,819.20x = 496,288,228.80 × 85,214,979.20
  4. Step 4: Simplify right side
    330,858,819.20x = 42,291,191,094,396,840
  5. Step 5: Solve for x
    x = 42,291,191,094,396,840/330,858,819.20
  6. Step 6: Final answer
    x = 127,822,468.80

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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.