Home / 726,798,218.16-1,002,976,438.80-396,773,357.20

Finding the Fourth Proportional to 726,798,218.16, 1,002,976,438.80 and 396,773,357.20

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Solution

The fourth proportional to 726,798,218.16, 1,002,976,438.80 and 396,773,357.20 is: 547,544,447.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,798,218.16 : 1,002,976,438.80 = 396,773,357.20 : x
  2. Step 2: Convert to fraction form
    726,798,218.16/1,002,976,438.80 = 396,773,357.20/x
  3. Step 3: Cross multiply
    726,798,218.16x = 1,002,976,438.80 × 396,773,357.20
  4. Step 4: Simplify right side
    726,798,218.16x = 397,954,328,815,176,320
  5. Step 5: Solve for x
    x = 397,954,328,815,176,320/726,798,218.16
  6. Step 6: Final answer
    x = 547,544,447.51

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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.