Home / 256,085,810.76-353,398,436.12-140,192,306.76

Finding the Fourth Proportional to 256,085,810.76, 353,398,436.12 and 140,192,306.76

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Solution

The fourth proportional to 256,085,810.76, 353,398,436.12 and 140,192,306.76 is: 193,465,392.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,085,810.76 : 353,398,436.12 = 140,192,306.76 : x
  2. Step 2: Convert to fraction form
    256,085,810.76/353,398,436.12 = 140,192,306.76/x
  3. Step 3: Cross multiply
    256,085,810.76x = 353,398,436.12 × 140,192,306.76
  4. Step 4: Simplify right side
    256,085,810.76x = 49,543,741,965,039,304
  5. Step 5: Solve for x
    x = 49,543,741,965,039,304/256,085,810.76
  6. Step 6: Final answer
    x = 193,465,392.78

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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.