Home / 221,499,991.80-305,673,195.66-122,383,019.64

Finding the Fourth Proportional to 221,499,991.80, 305,673,195.66 and 122,383,019.64

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Solution

The fourth proportional to 221,499,991.80, 305,673,195.66 and 122,383,019.64 is: 168,890,339.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,499,991.80 : 305,673,195.66 = 122,383,019.64 : x
  2. Step 2: Convert to fraction form
    221,499,991.80/305,673,195.66 = 122,383,019.64/x
  3. Step 3: Cross multiply
    221,499,991.80x = 305,673,195.66 × 122,383,019.64
  4. Step 4: Simplify right side
    221,499,991.80x = 37,409,208,707,879,344
  5. Step 5: Solve for x
    x = 37,409,208,707,879,344/221,499,991.80
  6. Step 6: Final answer
    x = 168,890,339.02

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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.