Home / 126,416,432.70-189,660,078.45-61,722,348.30

Finding the Fourth Proportional to 126,416,432.70, 189,660,078.45 and 61,722,348.30

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Solution

The fourth proportional to 126,416,432.70, 189,660,078.45 and 61,722,348.30 is: 92,600,820.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,416,432.70 : 189,660,078.45 = 61,722,348.30 : x
  2. Step 2: Convert to fraction form
    126,416,432.70/189,660,078.45 = 61,722,348.30/x
  3. Step 3: Cross multiply
    126,416,432.70x = 189,660,078.45 × 61,722,348.30
  4. Step 4: Simplify right side
    126,416,432.70x = 11,706,265,420,696,222
  5. Step 5: Solve for x
    x = 11,706,265,420,696,222/126,416,432.70
  6. Step 6: Final answer
    x = 92,600,820.72

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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.