Home / 253,167,853.12-379,809,049.86-80,654,493.76

Finding the Fourth Proportional to 253,167,853.12, 379,809,049.86 and 80,654,493.76

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Solution

The fourth proportional to 253,167,853.12, 379,809,049.86 and 80,654,493.76 is: 120,999,985.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,167,853.12 : 379,809,049.86 = 80,654,493.76 : x
  2. Step 2: Convert to fraction form
    253,167,853.12/379,809,049.86 = 80,654,493.76/x
  3. Step 3: Cross multiply
    253,167,853.12x = 379,809,049.86 × 80,654,493.76
  4. Step 4: Simplify right side
    253,167,853.12x = 30,633,306,641,924,904
  5. Step 5: Solve for x
    x = 30,633,306,641,924,904/253,167,853.12
  6. Step 6: Final answer
    x = 120,999,985.84

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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.