Home / 487,067,456.09-672,127,202.25-275,361,629.22

Finding the Fourth Proportional to 487,067,456.09, 672,127,202.25 and 275,361,629.22

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Solution

The fourth proportional to 487,067,456.09, 672,127,202.25 and 275,361,629.22 is: 379,984,413.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,067,456.09 : 672,127,202.25 = 275,361,629.22 : x
  2. Step 2: Convert to fraction form
    487,067,456.09/672,127,202.25 = 275,361,629.22/x
  3. Step 3: Cross multiply
    487,067,456.09x = 672,127,202.25 × 275,361,629.22
  4. Step 4: Simplify right side
    487,067,456.09x = 185,078,041,454,640,480
  5. Step 5: Solve for x
    x = 185,078,041,454,640,480/487,067,456.09
  6. Step 6: Final answer
    x = 379,984,413.13

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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.