Home / 646,729,538.20-970,236,024.90-319,361,882.20

Finding the Fourth Proportional to 646,729,538.20, 970,236,024.90 and 319,361,882.20

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Solution

The fourth proportional to 646,729,538.20, 970,236,024.90 and 319,361,882.20 is: 479,112,804.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,729,538.20 : 970,236,024.90 = 319,361,882.20 : x
  2. Step 2: Convert to fraction form
    646,729,538.20/970,236,024.90 = 319,361,882.20/x
  3. Step 3: Cross multiply
    646,729,538.20x = 970,236,024.90 × 319,361,882.20
  4. Step 4: Simplify right side
    646,729,538.20x = 309,856,403,090,310,016
  5. Step 5: Solve for x
    x = 309,856,403,090,310,016/646,729,538.20
  6. Step 6: Final answer
    x = 479,112,804.95

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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.