Home / 281,407,617.25-388,342,548.65-155,967,911.66

Finding the Fourth Proportional to 281,407,617.25, 388,342,548.65 and 155,967,911.66

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Solution

The fourth proportional to 281,407,617.25, 388,342,548.65 and 155,967,911.66 is: 215,235,738.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,407,617.25 : 388,342,548.65 = 155,967,911.66 : x
  2. Step 2: Convert to fraction form
    281,407,617.25/388,342,548.65 = 155,967,911.66/x
  3. Step 3: Cross multiply
    281,407,617.25x = 388,342,548.65 × 155,967,911.66
  4. Step 4: Simplify right side
    281,407,617.25x = 60,568,976,320,836,856
  5. Step 5: Solve for x
    x = 60,568,976,320,836,856/281,407,617.25
  6. Step 6: Final answer
    x = 215,235,738.51

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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.