Home / 352,245,187.40-528,367,781.10-188,986,512.20

Finding the Fourth Proportional to 352,245,187.40, 528,367,781.10 and 188,986,512.20

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Solution

The fourth proportional to 352,245,187.40, 528,367,781.10 and 188,986,512.20 is: 283,479,768.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,245,187.40 : 528,367,781.10 = 188,986,512.20 : x
  2. Step 2: Convert to fraction form
    352,245,187.40/528,367,781.10 = 188,986,512.20/x
  3. Step 3: Cross multiply
    352,245,187.40x = 528,367,781.10 × 188,986,512.20
  4. Step 4: Simplify right side
    352,245,187.40x = 99,854,384,108,942,080
  5. Step 5: Solve for x
    x = 99,854,384,108,942,080/352,245,187.40
  6. Step 6: Final answer
    x = 283,479,768.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.