Home / 442,685,272.20-664,453,061.10-378,062,046.60

Finding the Fourth Proportional to 442,685,272.20, 664,453,061.10 and 378,062,046.60

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Solution

The fourth proportional to 442,685,272.20, 664,453,061.10 and 378,062,046.60 is: 567,456,158.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,685,272.20 : 664,453,061.10 = 378,062,046.60 : x
  2. Step 2: Convert to fraction form
    442,685,272.20/664,453,061.10 = 378,062,046.60/x
  3. Step 3: Cross multiply
    442,685,272.20x = 664,453,061.10 × 378,062,046.60
  4. Step 4: Simplify right side
    442,685,272.20x = 251,204,484,149,100,864
  5. Step 5: Solve for x
    x = 251,204,484,149,100,864/442,685,272.20
  6. Step 6: Final answer
    x = 567,456,158.87

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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.