Home / 315,539,531.28-435,723,761.16-196,665,001.02

Finding the Fourth Proportional to 315,539,531.28, 435,723,761.16 and 196,665,001.02

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Solution

The fourth proportional to 315,539,531.28, 435,723,761.16 and 196,665,001.02 is: 271,571,722.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,539,531.28 : 435,723,761.16 = 196,665,001.02 : x
  2. Step 2: Convert to fraction form
    315,539,531.28/435,723,761.16 = 196,665,001.02/x
  3. Step 3: Cross multiply
    315,539,531.28x = 435,723,761.16 × 196,665,001.02
  4. Step 4: Simplify right side
    315,539,531.28x = 85,691,613,932,969,648
  5. Step 5: Solve for x
    x = 85,691,613,932,969,648/315,539,531.28
  6. Step 6: Final answer
    x = 271,571,722.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.