Home / 126,380,604.42-189,557,325.27-85,701,157.83

Finding the Fourth Proportional to 126,380,604.42, 189,557,325.27 and 85,701,157.83

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Solution

The fourth proportional to 126,380,604.42, 189,557,325.27 and 85,701,157.83 is: 128,542,526.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,380,604.42 : 189,557,325.27 = 85,701,157.83 : x
  2. Step 2: Convert to fraction form
    126,380,604.42/189,557,325.27 = 85,701,157.83/x
  3. Step 3: Cross multiply
    126,380,604.42x = 189,557,325.27 × 85,701,157.83
  4. Step 4: Simplify right side
    126,380,604.42x = 16,245,282,250,796,918
  5. Step 5: Solve for x
    x = 16,245,282,250,796,918/126,380,604.42
  6. Step 6: Final answer
    x = 128,542,526.96

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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.