Home / 203,342,010.12-280,747,108.71-156,215,150.82

Finding the Fourth Proportional to 203,342,010.12, 280,747,108.71 and 156,215,150.82

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Solution

The fourth proportional to 203,342,010.12, 280,747,108.71 and 156,215,150.82 is: 215,680,723.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,342,010.12 : 280,747,108.71 = 156,215,150.82 : x
  2. Step 2: Convert to fraction form
    203,342,010.12/280,747,108.71 = 156,215,150.82/x
  3. Step 3: Cross multiply
    203,342,010.12x = 280,747,108.71 × 156,215,150.82
  4. Step 4: Simplify right side
    203,342,010.12x = 43,856,951,929,411,584
  5. Step 5: Solve for x
    x = 43,856,951,929,411,584/203,342,010.12
  6. Step 6: Final answer
    x = 215,680,723.84

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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.