Home / 323,865,781.38-485,026,414.56-206,913,222.54

Finding the Fourth Proportional to 323,865,781.38, 485,026,414.56 and 206,913,222.54

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Solution

The fourth proportional to 323,865,781.38, 485,026,414.56 and 206,913,222.54 is: 309,876,449.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,865,781.38 : 485,026,414.56 = 206,913,222.54 : x
  2. Step 2: Convert to fraction form
    323,865,781.38/485,026,414.56 = 206,913,222.54/x
  3. Step 3: Cross multiply
    323,865,781.38x = 485,026,414.56 × 206,913,222.54
  4. Step 4: Simplify right side
    323,865,781.38x = 100,358,378,453,631,568
  5. Step 5: Solve for x
    x = 100,358,378,453,631,568/323,865,781.38
  6. Step 6: Final answer
    x = 309,876,449.52

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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.