Home / 646,729,508.20-970,235,979.90-319,361,852.20

Finding the Fourth Proportional to 646,729,508.20, 970,235,979.90 and 319,361,852.20

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Solution

The fourth proportional to 646,729,508.20, 970,235,979.90 and 319,361,852.20 is: 479,112,759.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,729,508.20 : 970,235,979.90 = 319,361,852.20 : x
  2. Step 2: Convert to fraction form
    646,729,508.20/970,235,979.90 = 319,361,852.20/x
  3. Step 3: Cross multiply
    646,729,508.20x = 970,235,979.90 × 319,361,852.20
  4. Step 4: Simplify right side
    646,729,508.20x = 309,856,359,611,945,920
  5. Step 5: Solve for x
    x = 309,856,359,611,945,920/646,729,508.20
  6. Step 6: Final answer
    x = 479,112,759.95

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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.