Home / 279,350,684.18-385,469,010.78-161,873,879.66

Finding the Fourth Proportional to 279,350,684.18, 385,469,010.78 and 161,873,879.66

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Solution

The fourth proportional to 279,350,684.18, 385,469,010.78 and 161,873,879.66 is: 223,365,711.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,350,684.18 : 385,469,010.78 = 161,873,879.66 : x
  2. Step 2: Convert to fraction form
    279,350,684.18/385,469,010.78 = 161,873,879.66/x
  3. Step 3: Cross multiply
    279,350,684.18x = 385,469,010.78 × 161,873,879.66
  4. Step 4: Simplify right side
    279,350,684.18x = 62,397,364,263,660,960
  5. Step 5: Solve for x
    x = 62,397,364,263,660,960/279,350,684.18
  6. Step 6: Final answer
    x = 223,365,711.26

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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.