Home / 518,319,150.78-777,478,726.17-324,608,906.28

Finding the Fourth Proportional to 518,319,150.78, 777,478,726.17 and 324,608,906.28

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Solution

The fourth proportional to 518,319,150.78, 777,478,726.17 and 324,608,906.28 is: 486,913,359.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,319,150.78 : 777,478,726.17 = 324,608,906.28 : x
  2. Step 2: Convert to fraction form
    518,319,150.78/777,478,726.17 = 324,608,906.28/x
  3. Step 3: Cross multiply
    518,319,150.78x = 777,478,726.17 × 324,608,906.28
  4. Step 4: Simplify right side
    518,319,150.78x = 252,376,518,952,500,832
  5. Step 5: Solve for x
    x = 252,376,518,952,500,832/518,319,150.78
  6. Step 6: Final answer
    x = 486,913,359.41

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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.