Home / 857,986,150-1,286,787,693.48-397,864,531.12

Finding the Fourth Proportional to 857,986,150, 1,286,787,693.48 and 397,864,531.12

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Solution

The fourth proportional to 857,986,150, 1,286,787,693.48 and 397,864,531.12 is: 596,707,979.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,986,150 : 1,286,787,693.48 = 397,864,531.12 : x
  2. Step 2: Convert to fraction form
    857,986,150/1,286,787,693.48 = 397,864,531.12/x
  3. Step 3: Cross multiply
    857,986,150x = 1,286,787,693.48 × 397,864,531.12
  4. Step 4: Simplify right side
    857,986,150x = 511,967,182,317,406,464
  5. Step 5: Solve for x
    x = 511,967,182,317,406,464/857,986,150
  6. Step 6: Final answer
    x = 596,707,979.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.