Home / 205,320,568.68-308,019,696.30-82,508,446.44

Finding the Fourth Proportional to 205,320,568.68, 308,019,696.30 and 82,508,446.44

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Solution

The fourth proportional to 205,320,568.68, 308,019,696.30 and 82,508,446.44 is: 123,778,278.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,320,568.68 : 308,019,696.30 = 82,508,446.44 : x
  2. Step 2: Convert to fraction form
    205,320,568.68/308,019,696.30 = 82,508,446.44/x
  3. Step 3: Cross multiply
    205,320,568.68x = 308,019,696.30 × 82,508,446.44
  4. Step 4: Simplify right side
    205,320,568.68x = 25,414,226,614,633,616
  5. Step 5: Solve for x
    x = 25,414,226,614,633,616/205,320,568.68
  6. Step 6: Final answer
    x = 123,778,278.90

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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.