Home / 408,542,542.92-612,768,404.70-146,216,500.20

Finding the Fourth Proportional to 408,542,542.92, 612,768,404.70 and 146,216,500.20

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Solution

The fourth proportional to 408,542,542.92, 612,768,404.70 and 146,216,500.20 is: 219,308,498.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,542,542.92 : 612,768,404.70 = 146,216,500.20 : x
  2. Step 2: Convert to fraction form
    408,542,542.92/612,768,404.70 = 146,216,500.20/x
  3. Step 3: Cross multiply
    408,542,542.92x = 612,768,404.70 × 146,216,500.20
  4. Step 4: Simplify right side
    408,542,542.92x = 89,596,851,568,371,232
  5. Step 5: Solve for x
    x = 89,596,851,568,371,232/408,542,542.92
  6. Step 6: Final answer
    x = 219,308,498.27

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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.