Home / 281,407,754.88-388,342,738.59-155,968,049.41

Finding the Fourth Proportional to 281,407,754.88, 388,342,738.59 and 155,968,049.41

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Solution

The fourth proportional to 281,407,754.88, 388,342,738.59 and 155,968,049.41 is: 215,235,928.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,407,754.88 : 388,342,738.59 = 155,968,049.41 : x
  2. Step 2: Convert to fraction form
    281,407,754.88/388,342,738.59 = 155,968,049.41/x
  3. Step 3: Cross multiply
    281,407,754.88x = 388,342,738.59 × 155,968,049.41
  4. Step 4: Simplify right side
    281,407,754.88x = 60,569,059,440,419,832
  5. Step 5: Solve for x
    x = 60,569,059,440,419,832/281,407,754.88
  6. Step 6: Final answer
    x = 215,235,928.61

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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.