Home / 726,798,219.66-1,002,976,440.93-396,773,358.66

Finding the Fourth Proportional to 726,798,219.66, 1,002,976,440.93 and 396,773,358.66

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Solution

The fourth proportional to 726,798,219.66, 1,002,976,440.93 and 396,773,358.66 is: 547,544,449.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,798,219.66 : 1,002,976,440.93 = 396,773,358.66 : x
  2. Step 2: Convert to fraction form
    726,798,219.66/1,002,976,440.93 = 396,773,358.66/x
  3. Step 3: Cross multiply
    726,798,219.66x = 1,002,976,440.93 × 396,773,358.66
  4. Step 4: Simplify right side
    726,798,219.66x = 397,954,331,124,649,216
  5. Step 5: Solve for x
    x = 397,954,331,124,649,216/726,798,219.66
  6. Step 6: Final answer
    x = 547,544,449.56

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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.