Home / 3,909,480.19-5,394,862.04-2,278,153.15

Finding the Fourth Proportional to 3,909,480.19, 5,394,862.04 and 2,278,153.15

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Solution

The fourth proportional to 3,909,480.19, 5,394,862.04 and 2,278,153.15 is: 3,143,722.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,909,480.19 : 5,394,862.04 = 2,278,153.15 : x
  2. Step 2: Convert to fraction form
    3,909,480.19/5,394,862.04 = 2,278,153.15/x
  3. Step 3: Cross multiply
    3,909,480.19x = 5,394,862.04 × 2,278,153.15
  4. Step 4: Simplify right side
    3,909,480.19x = 12,290,321,925,363.51
  5. Step 5: Solve for x
    x = 12,290,321,925,363.51/3,909,480.19
  6. Step 6: Final answer
    x = 3,143,722.78

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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.