Home / 2,135,691.45-2,947,255.38-1,168,821.18

Finding the Fourth Proportional to 2,135,691.45, 2,947,255.38 and 1,168,821.18

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Solution

The fourth proportional to 2,135,691.45, 2,947,255.38 and 1,168,821.18 is: 1,612,973.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,135,691.45 : 2,947,255.38 = 1,168,821.18 : x
  2. Step 2: Convert to fraction form
    2,135,691.45/2,947,255.38 = 1,168,821.18/x
  3. Step 3: Cross multiply
    2,135,691.45x = 2,947,255.38 × 1,168,821.18
  4. Step 4: Simplify right side
    2,135,691.45x = 3,444,814,511,012.95
  5. Step 5: Solve for x
    x = 3,444,814,511,012.95/2,135,691.45
  6. Step 6: Final answer
    x = 1,612,973.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.