Home / 312,675,262.92-431,493,809.94-173,454,847.56

Finding the Fourth Proportional to 312,675,262.92, 431,493,809.94 and 173,454,847.56

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Solution

The fourth proportional to 312,675,262.92, 431,493,809.94 and 173,454,847.56 is: 239,368,769.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,675,262.92 : 431,493,809.94 = 173,454,847.56 : x
  2. Step 2: Convert to fraction form
    312,675,262.92/431,493,809.94 = 173,454,847.56/x
  3. Step 3: Cross multiply
    312,675,262.92x = 431,493,809.94 × 173,454,847.56
  4. Step 4: Simplify right side
    312,675,262.92x = 74,844,693,026,226,320
  5. Step 5: Solve for x
    x = 74,844,693,026,226,320/312,675,262.92
  6. Step 6: Final answer
    x = 239,368,769.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.