Home / 126,380,599.56-189,557,317.98-85,701,152.97

Finding the Fourth Proportional to 126,380,599.56, 189,557,317.98 and 85,701,152.97

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Solution

The fourth proportional to 126,380,599.56, 189,557,317.98 and 85,701,152.97 is: 128,542,519.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,380,599.56 : 189,557,317.98 = 85,701,152.97 : x
  2. Step 2: Convert to fraction form
    126,380,599.56/189,557,317.98 = 85,701,152.97/x
  3. Step 3: Cross multiply
    126,380,599.56x = 189,557,317.98 × 85,701,152.97
  4. Step 4: Simplify right side
    126,380,599.56x = 16,245,280,704,786,910
  5. Step 5: Solve for x
    x = 16,245,280,704,786,910/126,380,599.56
  6. Step 6: Final answer
    x = 128,542,519.67

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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.