Home / 347,458,754.39-479,491,226.37-188,687,489.51

Finding the Fourth Proportional to 347,458,754.39, 479,491,226.37 and 188,687,489.51

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Solution

The fourth proportional to 347,458,754.39, 479,491,226.37 and 188,687,489.51 is: 260,387,728.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,458,754.39 : 479,491,226.37 = 188,687,489.51 : x
  2. Step 2: Convert to fraction form
    347,458,754.39/479,491,226.37 = 188,687,489.51/x
  3. Step 3: Cross multiply
    347,458,754.39x = 479,491,226.37 × 188,687,489.51
  4. Step 4: Simplify right side
    347,458,754.39x = 90,473,995,747,025,136
  5. Step 5: Solve for x
    x = 90,473,995,747,025,136/347,458,754.39
  6. Step 6: Final answer
    x = 260,387,728.34

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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.