Home / 311,644,958.11-430,066,853.49-172,416,716.32

Finding the Fourth Proportional to 311,644,958.11, 430,066,853.49 and 172,416,716.32

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Solution

The fourth proportional to 311,644,958.11, 430,066,853.49 and 172,416,716.32 is: 237,933,304.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,644,958.11 : 430,066,853.49 = 172,416,716.32 : x
  2. Step 2: Convert to fraction form
    311,644,958.11/430,066,853.49 = 172,416,716.32/x
  3. Step 3: Cross multiply
    311,644,958.11x = 430,066,853.49 × 172,416,716.32
  4. Step 4: Simplify right side
    311,644,958.11x = 74,150,714,676,820,336
  5. Step 5: Solve for x
    x = 74,150,714,676,820,336/311,644,958.11
  6. Step 6: Final answer
    x = 237,933,304.38

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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.