Home / 312,745,132.44-431,588,336.13-173,515,562.06

Finding the Fourth Proportional to 312,745,132.44, 431,588,336.13 and 173,515,562.06

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Solution

The fourth proportional to 312,745,132.44, 431,588,336.13 and 173,515,562.06 is: 239,451,505.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,745,132.44 : 431,588,336.13 = 173,515,562.06 : x
  2. Step 2: Convert to fraction form
    312,745,132.44/431,588,336.13 = 173,515,562.06/x
  3. Step 3: Cross multiply
    312,745,132.44x = 431,588,336.13 × 173,515,562.06
  4. Step 4: Simplify right side
    312,745,132.44x = 74,887,292,719,979,216
  5. Step 5: Solve for x
    x = 74,887,292,719,979,216/312,745,132.44
  6. Step 6: Final answer
    x = 239,451,505.24

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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.