Home / 408,998,467.20-613,497,700.80-317,627,356.80

Finding the Fourth Proportional to 408,998,467.20, 613,497,700.80 and 317,627,356.80

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Solution

The fourth proportional to 408,998,467.20, 613,497,700.80 and 317,627,356.80 is: 476,441,035.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,998,467.20 : 613,497,700.80 = 317,627,356.80 : x
  2. Step 2: Convert to fraction form
    408,998,467.20/613,497,700.80 = 317,627,356.80/x
  3. Step 3: Cross multiply
    408,998,467.20x = 613,497,700.80 × 317,627,356.80
  4. Step 4: Simplify right side
    408,998,467.20x = 194,863,653,107,981,248
  5. Step 5: Solve for x
    x = 194,863,653,107,981,248/408,998,467.20
  6. Step 6: Final answer
    x = 476,441,035.20

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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.