Home / 126,171,245.70-189,270,158.22-52,386,647.94

Finding the Fourth Proportional to 126,171,245.70, 189,270,158.22 and 52,386,647.94

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Solution

The fourth proportional to 126,171,245.70, 189,270,158.22 and 52,386,647.94 is: 78,585,489.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,171,245.70 : 189,270,158.22 = 52,386,647.94 : x
  2. Step 2: Convert to fraction form
    126,171,245.70/189,270,158.22 = 52,386,647.94/x
  3. Step 3: Cross multiply
    126,171,245.70x = 189,270,158.22 × 52,386,647.94
  4. Step 4: Simplify right side
    126,171,245.70x = 9,915,229,144,219,236
  5. Step 5: Solve for x
    x = 9,915,229,144,219,236/126,171,245.70
  6. Step 6: Final answer
    x = 78,585,489.82

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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.