Home / 126,408,638.78-189,612,958.20-35,532,227.78

Finding the Fourth Proportional to 126,408,638.78, 189,612,958.20 and 35,532,227.78

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Solution

The fourth proportional to 126,408,638.78, 189,612,958.20 and 35,532,227.78 is: 53,298,341.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,408,638.78 : 189,612,958.20 = 35,532,227.78 : x
  2. Step 2: Convert to fraction form
    126,408,638.78/189,612,958.20 = 35,532,227.78/x
  3. Step 3: Cross multiply
    126,408,638.78x = 189,612,958.20 × 35,532,227.78
  4. Step 4: Simplify right side
    126,408,638.78x = 6,737,370,820,802,019
  5. Step 5: Solve for x
    x = 6,737,370,820,802,019/126,408,638.78
  6. Step 6: Final answer
    x = 53,298,341.68

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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.