Home / 327,888,910.30-491,833,365.45-85,551,814.30

Finding the Fourth Proportional to 327,888,910.30, 491,833,365.45 and 85,551,814.30

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Solution

The fourth proportional to 327,888,910.30, 491,833,365.45 and 85,551,814.30 is: 128,327,721.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,888,910.30 : 491,833,365.45 = 85,551,814.30 : x
  2. Step 2: Convert to fraction form
    327,888,910.30/491,833,365.45 = 85,551,814.30/x
  3. Step 3: Cross multiply
    327,888,910.30x = 491,833,365.45 × 85,551,814.30
  4. Step 4: Simplify right side
    327,888,910.30x = 42,077,236,747,522,432
  5. Step 5: Solve for x
    x = 42,077,236,747,522,432/327,888,910.30
  6. Step 6: Final answer
    x = 128,327,721.45

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Double scale
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1.5x scale

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.