Home / 129,510,147.44-194,365,959.84-90,394,486.04

Finding the Fourth Proportional to 129,510,147.44, 194,365,959.84 and 90,394,486.04

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Solution

The fourth proportional to 129,510,147.44, 194,365,959.84 and 90,394,486.04 is: 135,662,041.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,510,147.44 : 194,365,959.84 = 90,394,486.04 : x
  2. Step 2: Convert to fraction form
    129,510,147.44/194,365,959.84 = 90,394,486.04/x
  3. Step 3: Cross multiply
    129,510,147.44x = 194,365,959.84 × 90,394,486.04
  4. Step 4: Simplify right side
    129,510,147.44x = 17,569,611,042,436,250
  5. Step 5: Solve for x
    x = 17,569,611,042,436,250/129,510,147.44
  6. Step 6: Final answer
    x = 135,662,041.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.