Home / 279,829,436.86-419,729,014.66-85,741,414.03

Finding the Fourth Proportional to 279,829,436.86, 419,729,014.66 and 85,741,414.03

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Solution

The fourth proportional to 279,829,436.86, 419,729,014.66 and 85,741,414.03 is: 128,607,481.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,829,436.86 : 419,729,014.66 = 85,741,414.03 : x
  2. Step 2: Convert to fraction form
    279,829,436.86/419,729,014.66 = 85,741,414.03/x
  3. Step 3: Cross multiply
    279,829,436.86x = 419,729,014.66 × 85,741,414.03
  4. Step 4: Simplify right side
    279,829,436.86x = 35,988,159,224,717,604
  5. Step 5: Solve for x
    x = 35,988,159,224,717,604/279,829,436.86
  6. Step 6: Final answer
    x = 128,607,481.86

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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.