Home / 1,278,489,414.60-1,917,734,121.90-589,741,878.60

Finding the Fourth Proportional to 1,278,489,414.60, 1,917,734,121.90 and 589,741,878.60

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Solution

The fourth proportional to 1,278,489,414.60, 1,917,734,121.90 and 589,741,878.60 is: 884,612,817.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,489,414.60 : 1,917,734,121.90 = 589,741,878.60 : x
  2. Step 2: Convert to fraction form
    1,278,489,414.60/1,917,734,121.90 = 589,741,878.60/x
  3. Step 3: Cross multiply
    1,278,489,414.60x = 1,917,734,121.90 × 589,741,878.60
  4. Step 4: Simplify right side
    1,278,489,414.60x = 1,130,968,123,704,627,456
  5. Step 5: Solve for x
    x = 1,130,968,123,704,627,456/1,278,489,414.60
  6. Step 6: Final answer
    x = 884,612,817.90

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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.