Home / 2,101,112.80-3,131,682.08-1,981,527.52

Finding the Fourth Proportional to 2,101,112.80, 3,131,682.08 and 1,981,527.52

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Solution

The fourth proportional to 2,101,112.80, 3,131,682.08 and 1,981,527.52 is: 2,953,441.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,101,112.80 : 3,131,682.08 = 1,981,527.52 : x
  2. Step 2: Convert to fraction form
    2,101,112.80/3,131,682.08 = 1,981,527.52/x
  3. Step 3: Cross multiply
    2,101,112.80x = 3,131,682.08 × 1,981,527.52
  4. Step 4: Simplify right side
    2,101,112.80x = 6,205,514,225,410.84
  5. Step 5: Solve for x
    x = 6,205,514,225,410.84/2,101,112.80
  6. Step 6: Final answer
    x = 2,953,441.73

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.