Home / 272,113,839.20-408,170,233.80-67,642,111.28

Finding the Fourth Proportional to 272,113,839.20, 408,170,233.80 and 67,642,111.28

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Solution

The fourth proportional to 272,113,839.20, 408,170,233.80 and 67,642,111.28 is: 101,463,036.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,113,839.20 : 408,170,233.80 = 67,642,111.28 : x
  2. Step 2: Convert to fraction form
    272,113,839.20/408,170,233.80 = 67,642,111.28/x
  3. Step 3: Cross multiply
    272,113,839.20x = 408,170,233.80 × 67,642,111.28
  4. Step 4: Simplify right side
    272,113,839.20x = 27,609,496,375,883,220
  5. Step 5: Solve for x
    x = 27,609,496,375,883,220/272,113,839.20
  6. Step 6: Final answer
    x = 101,463,036.42

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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.