Home / 140,262,093.72-193,561,951.59-78,382,432.35

Finding the Fourth Proportional to 140,262,093.72, 193,561,951.59 and 78,382,432.35

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Solution

The fourth proportional to 140,262,093.72, 193,561,951.59 and 78,382,432.35 is: 108,167,903.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,262,093.72 : 193,561,951.59 = 78,382,432.35 : x
  2. Step 2: Convert to fraction form
    140,262,093.72/193,561,951.59 = 78,382,432.35/x
  3. Step 3: Cross multiply
    140,262,093.72x = 193,561,951.59 × 78,382,432.35
  4. Step 4: Simplify right side
    140,262,093.72x = 15,171,856,576,037,150
  5. Step 5: Solve for x
    x = 15,171,856,576,037,150/140,262,093.72
  6. Step 6: Final answer
    x = 108,167,903.20

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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.