Home / 172,542,229.79-258,941,885.67-126,602,809.52

Finding the Fourth Proportional to 172,542,229.79, 258,941,885.67 and 126,602,809.52

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Solution

The fourth proportional to 172,542,229.79, 258,941,885.67 and 126,602,809.52 is: 189,998,531.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,542,229.79 : 258,941,885.67 = 126,602,809.52 : x
  2. Step 2: Convert to fraction form
    172,542,229.79/258,941,885.67 = 126,602,809.52/x
  3. Step 3: Cross multiply
    172,542,229.79x = 258,941,885.67 × 126,602,809.52
  4. Step 4: Simplify right side
    172,542,229.79x = 32,782,770,226,933,916
  5. Step 5: Solve for x
    x = 32,782,770,226,933,916/172,542,229.79
  6. Step 6: Final answer
    x = 189,998,531.19

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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.