Home / 352,685,621.12-486,647,326.62-196,031,428.97

Finding the Fourth Proportional to 352,685,621.12, 486,647,326.62 and 196,031,428.97

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Solution

The fourth proportional to 352,685,621.12, 486,647,326.62 and 196,031,428.97 is: 270,490,672.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,685,621.12 : 486,647,326.62 = 196,031,428.97 : x
  2. Step 2: Convert to fraction form
    352,685,621.12/486,647,326.62 = 196,031,428.97/x
  3. Step 3: Cross multiply
    352,685,621.12x = 486,647,326.62 × 196,031,428.97
  4. Step 4: Simplify right side
    352,685,621.12x = 95,398,170,839,315,680
  5. Step 5: Solve for x
    x = 95,398,170,839,315,680/352,685,621.12
  6. Step 6: Final answer
    x = 270,490,672.51

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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.