Home / 1,276,517,791.09-1,912,095,200.10-809,939,049.29

Finding the Fourth Proportional to 1,276,517,791.09, 1,912,095,200.10 and 809,939,049.29

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Solution

The fourth proportional to 1,276,517,791.09, 1,912,095,200.10 and 809,939,049.29 is: 1,213,207,194.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276,517,791.09 : 1,912,095,200.10 = 809,939,049.29 : x
  2. Step 2: Convert to fraction form
    1,276,517,791.09/1,912,095,200.10 = 809,939,049.29/x
  3. Step 3: Cross multiply
    1,276,517,791.09x = 1,912,095,200.10 × 809,939,049.29
  4. Step 4: Simplify right side
    1,276,517,791.09x = 1,548,680,568,517,037,312
  5. Step 5: Solve for x
    x = 1,548,680,568,517,037,312/1,276,517,791.09
  6. Step 6: Final answer
    x = 1,213,207,194.86

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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.