Home / 511,967,719.38-706,255,167.66-310,971,107.10

Finding the Fourth Proportional to 511,967,719.38, 706,255,167.66 and 310,971,107.10

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Solution

The fourth proportional to 511,967,719.38, 706,255,167.66 and 310,971,107.10 is: 428,982,029.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,967,719.38 : 706,255,167.66 = 310,971,107.10 : x
  2. Step 2: Convert to fraction form
    511,967,719.38/706,255,167.66 = 310,971,107.10/x
  3. Step 3: Cross multiply
    511,967,719.38x = 706,255,167.66 × 310,971,107.10
  4. Step 4: Simplify right side
    511,967,719.38x = 219,624,951,382,326,336
  5. Step 5: Solve for x
    x = 219,624,951,382,326,336/511,967,719.38
  6. Step 6: Final answer
    x = 428,982,029.66

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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.