Home / 814,473,100.75-1,222,085,382.79-371,951,438.76

Finding the Fourth Proportional to 814,473,100.75, 1,222,085,382.79 and 371,951,438.76

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Solution

The fourth proportional to 814,473,100.75, 1,222,085,382.79 and 371,951,438.76 is: 558,098,746.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,473,100.75 : 1,222,085,382.79 = 371,951,438.76 : x
  2. Step 2: Convert to fraction form
    814,473,100.75/1,222,085,382.79 = 371,951,438.76/x
  3. Step 3: Cross multiply
    814,473,100.75x = 1,222,085,382.79 × 371,951,438.76
  4. Step 4: Simplify right side
    814,473,100.75x = 454,556,416,416,305,792
  5. Step 5: Solve for x
    x = 454,556,416,416,305,792/814,473,100.75
  6. Step 6: Final answer
    x = 558,098,746.29

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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.