Home / 518,223,764.25-777,335,646.38-173,177,391.23

Finding the Fourth Proportional to 518,223,764.25, 777,335,646.38 and 173,177,391.23

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Solution

The fourth proportional to 518,223,764.25, 777,335,646.38 and 173,177,391.23 is: 259,766,086.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,223,764.25 : 777,335,646.38 = 173,177,391.23 : x
  2. Step 2: Convert to fraction form
    518,223,764.25/777,335,646.38 = 173,177,391.23/x
  3. Step 3: Cross multiply
    518,223,764.25x = 777,335,646.38 × 173,177,391.23
  4. Step 4: Simplify right side
    518,223,764.25x = 134,616,959,352,713,040
  5. Step 5: Solve for x
    x = 134,616,959,352,713,040/518,223,764.25
  6. Step 6: Final answer
    x = 259,766,086.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.