Home / 141,464,315.91-195,220,765.35-78,739,067.76

Finding the Fourth Proportional to 141,464,315.91, 195,220,765.35 and 78,739,067.76

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Solution

The fourth proportional to 141,464,315.91, 195,220,765.35 and 78,739,067.76 is: 108,659,918.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,464,315.91 : 195,220,765.35 = 78,739,067.76 : x
  2. Step 2: Convert to fraction form
    141,464,315.91/195,220,765.35 = 78,739,067.76/x
  3. Step 3: Cross multiply
    141,464,315.91x = 195,220,765.35 × 78,739,067.76
  4. Step 4: Simplify right side
    141,464,315.91x = 15,371,501,070,025,360
  5. Step 5: Solve for x
    x = 15,371,501,070,025,360/141,464,315.91
  6. Step 6: Final answer
    x = 108,659,918.73

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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.