Home / 57,087,324.75-78,780,548.66-30,981,836.37

Finding the Fourth Proportional to 57,087,324.75, 78,780,548.66 and 30,981,836.37

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Solution

The fourth proportional to 57,087,324.75, 78,780,548.66 and 30,981,836.37 is: 42,754,956.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,087,324.75 : 78,780,548.66 = 30,981,836.37 : x
  2. Step 2: Convert to fraction form
    57,087,324.75/78,780,548.66 = 30,981,836.37/x
  3. Step 3: Cross multiply
    57,087,324.75x = 78,780,548.66 × 30,981,836.37
  4. Step 4: Simplify right side
    57,087,324.75x = 2,440,766,067,568,033.50
  5. Step 5: Solve for x
    x = 2,440,766,067,568,033.50/57,087,324.75
  6. Step 6: Final answer
    x = 42,754,956.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.