Home / 168,083,045.28-231,954,612.18-90,820,709.28

Finding the Fourth Proportional to 168,083,045.28, 231,954,612.18 and 90,820,709.28

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Solution

The fourth proportional to 168,083,045.28, 231,954,612.18 and 90,820,709.28 is: 125,332,584.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,083,045.28 : 231,954,612.18 = 90,820,709.28 : x
  2. Step 2: Convert to fraction form
    168,083,045.28/231,954,612.18 = 90,820,709.28/x
  3. Step 3: Cross multiply
    168,083,045.28x = 231,954,612.18 × 90,820,709.28
  4. Step 4: Simplify right side
    168,083,045.28x = 21,066,282,398,954,928
  5. Step 5: Solve for x
    x = 21,066,282,398,954,928/168,083,045.28
  6. Step 6: Final answer
    x = 125,332,584.04

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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.