Home / 342,161,712.72-472,192,448.10-193,505,063.79

Finding the Fourth Proportional to 342,161,712.72, 472,192,448.10 and 193,505,063.79

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Solution

The fourth proportional to 342,161,712.72, 472,192,448.10 and 193,505,063.79 is: 267,042,238.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,161,712.72 : 472,192,448.10 = 193,505,063.79 : x
  2. Step 2: Convert to fraction form
    342,161,712.72/472,192,448.10 = 193,505,063.79/x
  3. Step 3: Cross multiply
    342,161,712.72x = 472,192,448.10 × 193,505,063.79
  4. Step 4: Simplify right side
    342,161,712.72x = 91,371,629,790,746,768
  5. Step 5: Solve for x
    x = 91,371,629,790,746,768/342,161,712.72
  6. Step 6: Final answer
    x = 267,042,238.78

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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.