Home / 221,145,224.75-305,290,895.16-137,540,304.44

Finding the Fourth Proportional to 221,145,224.75, 305,290,895.16 and 137,540,304.44

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Solution

The fourth proportional to 221,145,224.75, 305,290,895.16 and 137,540,304.44 is: 189,874,335.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,145,224.75 : 305,290,895.16 = 137,540,304.44 : x
  2. Step 2: Convert to fraction form
    221,145,224.75/305,290,895.16 = 137,540,304.44/x
  3. Step 3: Cross multiply
    221,145,224.75x = 305,290,895.16 × 137,540,304.44
  4. Step 4: Simplify right side
    221,145,224.75x = 41,989,802,661,540,072
  5. Step 5: Solve for x
    x = 41,989,802,661,540,072/221,145,224.75
  6. Step 6: Final answer
    x = 189,874,335.79

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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.