Home / 311,986,067.24-430,535,512.64-172,753,839.66

Finding the Fourth Proportional to 311,986,067.24, 430,535,512.64 and 172,753,839.66

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Solution

The fourth proportional to 311,986,067.24, 430,535,512.64 and 172,753,839.66 is: 238,397,386.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,986,067.24 : 430,535,512.64 = 172,753,839.66 : x
  2. Step 2: Convert to fraction form
    311,986,067.24/430,535,512.64 = 172,753,839.66/x
  3. Step 3: Cross multiply
    311,986,067.24x = 430,535,512.64 × 172,753,839.66
  4. Step 4: Simplify right side
    311,986,067.24x = 74,376,662,918,546,464
  5. Step 5: Solve for x
    x = 74,376,662,918,546,464/311,986,067.24
  6. Step 6: Final answer
    x = 238,397,386.06

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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.