Home / 281,407,617.40-388,342,548.87-155,967,911.81

Finding the Fourth Proportional to 281,407,617.40, 388,342,548.87 and 155,967,911.81

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Solution

The fourth proportional to 281,407,617.40, 388,342,548.87 and 155,967,911.81 is: 215,235,738.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,407,617.40 : 388,342,548.87 = 155,967,911.81 : x
  2. Step 2: Convert to fraction form
    281,407,617.40/388,342,548.87 = 155,967,911.81/x
  3. Step 3: Cross multiply
    281,407,617.40x = 388,342,548.87 × 155,967,911.81
  4. Step 4: Simplify right side
    281,407,617.40x = 60,568,976,414,226,776
  5. Step 5: Solve for x
    x = 60,568,976,414,226,776/281,407,617.40
  6. Step 6: Final answer
    x = 215,235,738.73

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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.