Home / 713,481,847,713.52-984,625,857,991.30-388,342,198,761.78

Finding the Fourth Proportional to 713,481,847,713.52, 984,625,857,991.30 and 388,342,198,761.78

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Solution

The fourth proportional to 713,481,847,713.52, 984,625,857,991.30 and 388,342,198,761.78 is: 535,923,614,420.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,481,847,713.52 : 984,625,857,991.30 = 388,342,198,761.78 : x
  2. Step 2: Convert to fraction form
    713,481,847,713.52/984,625,857,991.30 = 388,342,198,761.78/x
  3. Step 3: Cross multiply
    713,481,847,713.52x = 984,625,857,991.30 × 388,342,198,761.78
  4. Step 4: Simplify right side
    713,481,847,713.52x = 382,371,770,650,045,620,158,464
  5. Step 5: Solve for x
    x = 382,371,770,650,045,620,158,464/713,481,847,713.52
  6. Step 6: Final answer
    x = 535,923,614,420.50

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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.