Home / 327,456,820.80-491,185,231.20-163,719,848.70

Finding the Fourth Proportional to 327,456,820.80, 491,185,231.20 and 163,719,848.70

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Solution

The fourth proportional to 327,456,820.80, 491,185,231.20 and 163,719,848.70 is: 245,579,773.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,456,820.80 : 491,185,231.20 = 163,719,848.70 : x
  2. Step 2: Convert to fraction form
    327,456,820.80/491,185,231.20 = 163,719,848.70/x
  3. Step 3: Cross multiply
    327,456,820.80x = 491,185,231.20 × 163,719,848.70
  4. Step 4: Simplify right side
    327,456,820.80x = 80,416,771,735,738,512
  5. Step 5: Solve for x
    x = 80,416,771,735,738,512/327,456,820.80
  6. Step 6: Final answer
    x = 245,579,773.05

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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.