Home / 311,644,959.11-430,066,854.87-172,416,717.32

Finding the Fourth Proportional to 311,644,959.11, 430,066,854.87 and 172,416,717.32

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Solution

The fourth proportional to 311,644,959.11, 430,066,854.87 and 172,416,717.32 is: 237,933,305.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,644,959.11 : 430,066,854.87 = 172,416,717.32 : x
  2. Step 2: Convert to fraction form
    311,644,959.11/430,066,854.87 = 172,416,717.32/x
  3. Step 3: Cross multiply
    311,644,959.11x = 430,066,854.87 × 172,416,717.32
  4. Step 4: Simplify right side
    311,644,959.11x = 74,150,715,344,822,256
  5. Step 5: Solve for x
    x = 74,150,715,344,822,256/311,644,959.11
  6. Step 6: Final answer
    x = 237,933,305.76

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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.