Home / 365,981,825.90-505,040,754.33-198,714,258.74

Finding the Fourth Proportional to 365,981,825.90, 505,040,754.33 and 198,714,258.74

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Solution

The fourth proportional to 365,981,825.90, 505,040,754.33 and 198,714,258.74 is: 274,217,985.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,981,825.90 : 505,040,754.33 = 198,714,258.74 : x
  2. Step 2: Convert to fraction form
    365,981,825.90/505,040,754.33 = 198,714,258.74/x
  3. Step 3: Cross multiply
    365,981,825.90x = 505,040,754.33 × 198,714,258.74
  4. Step 4: Simplify right side
    365,981,825.90x = 100,358,799,131,438,992
  5. Step 5: Solve for x
    x = 100,358,799,131,438,992/365,981,825.90
  6. Step 6: Final answer
    x = 274,217,985.78

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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.