Home / 140,597,211.92-194,021,985.57-78,719,764.82

Finding the Fourth Proportional to 140,597,211.92, 194,021,985.57 and 78,719,764.82

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Solution

The fourth proportional to 140,597,211.92, 194,021,985.57 and 78,719,764.82 is: 108,632,062.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,597,211.92 : 194,021,985.57 = 78,719,764.82 : x
  2. Step 2: Convert to fraction form
    140,597,211.92/194,021,985.57 = 78,719,764.82/x
  3. Step 3: Cross multiply
    140,597,211.92x = 194,021,985.57 × 78,719,764.82
  4. Step 4: Simplify right side
    140,597,211.92x = 15,273,365,073,979,832
  5. Step 5: Solve for x
    x = 15,273,365,073,979,832/140,597,211.92
  6. Step 6: Final answer
    x = 108,632,062.23

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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.