Home / 1,328,016,819.40-1,992,025,229.10-1,309,876,966.60

Finding the Fourth Proportional to 1,328,016,819.40, 1,992,025,229.10 and 1,309,876,966.60

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Solution

The fourth proportional to 1,328,016,819.40, 1,992,025,229.10 and 1,309,876,966.60 is: 1,964,815,449.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,016,819.40 : 1,992,025,229.10 = 1,309,876,966.60 : x
  2. Step 2: Convert to fraction form
    1,328,016,819.40/1,992,025,229.10 = 1,309,876,966.60/x
  3. Step 3: Cross multiply
    1,328,016,819.40x = 1,992,025,229.10 × 1,309,876,966.60
  4. Step 4: Simplify right side
    1,328,016,819.40x = 2,609,307,964,484,177,920
  5. Step 5: Solve for x
    x = 2,609,307,964,484,177,920/1,328,016,819.40
  6. Step 6: Final answer
    x = 1,964,815,449.90

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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.