Home / 800,385,177.27-1,200,692,517.80-247,736,138.43

Finding the Fourth Proportional to 800,385,177.27, 1,200,692,517.80 and 247,736,138.43

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Solution

The fourth proportional to 800,385,177.27, 1,200,692,517.80 and 247,736,138.43 is: 371,639,725.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,385,177.27 : 1,200,692,517.80 = 247,736,138.43 : x
  2. Step 2: Convert to fraction form
    800,385,177.27/1,200,692,517.80 = 247,736,138.43/x
  3. Step 3: Cross multiply
    800,385,177.27x = 1,200,692,517.80 × 247,736,138.43
  4. Step 4: Simplify right side
    800,385,177.27x = 297,454,927,801,566,016
  5. Step 5: Solve for x
    x = 297,454,927,801,566,016/800,385,177.27
  6. Step 6: Final answer
    x = 371,639,725.78

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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.