Home / 172,542,231.29-258,941,887.92-126,602,811.02

Finding the Fourth Proportional to 172,542,231.29, 258,941,887.92 and 126,602,811.02

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Solution

The fourth proportional to 172,542,231.29, 258,941,887.92 and 126,602,811.02 is: 189,998,533.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,542,231.29 : 258,941,887.92 = 126,602,811.02 : x
  2. Step 2: Convert to fraction form
    172,542,231.29/258,941,887.92 = 126,602,811.02/x
  3. Step 3: Cross multiply
    172,542,231.29x = 258,941,887.92 × 126,602,811.02
  4. Step 4: Simplify right side
    172,542,231.29x = 32,782,770,901,497,780
  5. Step 5: Solve for x
    x = 32,782,770,901,497,780/172,542,231.29
  6. Step 6: Final answer
    x = 189,998,533.44

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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.