Home / 141,922,838.72-195,853,148.92-79,198,278.64

Finding the Fourth Proportional to 141,922,838.72, 195,853,148.92 and 79,198,278.64

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Solution

The fourth proportional to 141,922,838.72, 195,853,148.92 and 79,198,278.64 is: 109,293,418.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,922,838.72 : 195,853,148.92 = 79,198,278.64 : x
  2. Step 2: Convert to fraction form
    141,922,838.72/195,853,148.92 = 79,198,278.64/x
  3. Step 3: Cross multiply
    141,922,838.72x = 195,853,148.92 × 79,198,278.64
  4. Step 4: Simplify right side
    141,922,838.72x = 15,511,232,260,687,574
  5. Step 5: Solve for x
    x = 15,511,232,260,687,574/141,922,838.72
  6. Step 6: Final answer
    x = 109,293,418.88

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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.