Home / 138,320,283.92-190,882,177.80-79,581,770.94

Finding the Fourth Proportional to 138,320,283.92, 190,882,177.80 and 79,581,770.94

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Solution

The fourth proportional to 138,320,283.92, 190,882,177.80 and 79,581,770.94 is: 109,822,950.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,320,283.92 : 190,882,177.80 = 79,581,770.94 : x
  2. Step 2: Convert to fraction form
    138,320,283.92/190,882,177.80 = 79,581,770.94/x
  3. Step 3: Cross multiply
    138,320,283.92x = 190,882,177.80 × 79,581,770.94
  4. Step 4: Simplify right side
    138,320,283.92x = 15,190,741,750,207,954
  5. Step 5: Solve for x
    x = 15,190,741,750,207,954/138,320,283.92
  6. Step 6: Final answer
    x = 109,822,950.91

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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.