Home / 138,770,093.43-191,523,123-80,021,283.75

Finding the Fourth Proportional to 138,770,093.43, 191,523,123 and 80,021,283.75

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Solution

The fourth proportional to 138,770,093.43, 191,523,123 and 80,021,283.75 is: 110,441,131.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,770,093.43 : 191,523,123 = 80,021,283.75 : x
  2. Step 2: Convert to fraction form
    138,770,093.43/191,523,123 = 80,021,283.75/x
  3. Step 3: Cross multiply
    138,770,093.43x = 191,523,123 × 80,021,283.75
  4. Step 4: Simplify right side
    138,770,093.43x = 15,325,926,170,269,152
  5. Step 5: Solve for x
    x = 15,325,926,170,269,152/138,770,093.43
  6. Step 6: Final answer
    x = 110,441,131.74

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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.