Home / 51,204,361.57-76,806,620.12-20,912,224.57

Finding the Fourth Proportional to 51,204,361.57, 76,806,620.12 and 20,912,224.57

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Solution

The fourth proportional to 51,204,361.57, 76,806,620.12 and 20,912,224.57 is: 31,368,368.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,204,361.57 : 76,806,620.12 = 20,912,224.57 : x
  2. Step 2: Convert to fraction form
    51,204,361.57/76,806,620.12 = 20,912,224.57/x
  3. Step 3: Cross multiply
    51,204,361.57x = 76,806,620.12 × 20,912,224.57
  4. Step 4: Simplify right side
    51,204,361.57x = 1,606,197,288,412,120.50
  5. Step 5: Solve for x
    x = 1,606,197,288,412,120.50/51,204,361.57
  6. Step 6: Final answer
    x = 31,368,368.61

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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.