Home / 2,781,752.80-3,835,049.52-2,378,189.92

Finding the Fourth Proportional to 2,781,752.80, 3,835,049.52 and 2,378,189.92

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Solution

The fourth proportional to 2,781,752.80, 3,835,049.52 and 2,378,189.92 is: 3,278,679.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,781,752.80 : 3,835,049.52 = 2,378,189.92 : x
  2. Step 2: Convert to fraction form
    2,781,752.80/3,835,049.52 = 2,378,189.92/x
  3. Step 3: Cross multiply
    2,781,752.80x = 3,835,049.52 × 2,378,189.92
  4. Step 4: Simplify right side
    2,781,752.80x = 9,120,476,111,164.84
  5. Step 5: Solve for x
    x = 9,120,476,111,164.84/2,781,752.80
  6. Step 6: Final answer
    x = 3,278,679.58

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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.