Home / 511,215,769.61-705,509,377.30-282,069,422.97

Finding the Fourth Proportional to 511,215,769.61, 705,509,377.30 and 282,069,422.97

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Solution

The fourth proportional to 511,215,769.61, 705,509,377.30 and 282,069,422.97 is: 389,273,247.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,215,769.61 : 705,509,377.30 = 282,069,422.97 : x
  2. Step 2: Convert to fraction form
    511,215,769.61/705,509,377.30 = 282,069,422.97/x
  3. Step 3: Cross multiply
    511,215,769.61x = 705,509,377.30 × 282,069,422.97
  4. Step 4: Simplify right side
    511,215,769.61x = 199,002,622,952,641,952
  5. Step 5: Solve for x
    x = 199,002,622,952,641,952/511,215,769.61
  6. Step 6: Final answer
    x = 389,273,247.78

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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.