Home / 281,407,759.88-388,342,745.50-155,968,054.42

Finding the Fourth Proportional to 281,407,759.88, 388,342,745.50 and 155,968,054.42

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Solution

The fourth proportional to 281,407,759.88, 388,342,745.50 and 155,968,054.42 is: 215,235,935.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,407,759.88 : 388,342,745.50 = 155,968,054.42 : x
  2. Step 2: Convert to fraction form
    281,407,759.88/388,342,745.50 = 155,968,054.42/x
  3. Step 3: Cross multiply
    281,407,759.88x = 388,342,745.50 × 155,968,054.42
  4. Step 4: Simplify right side
    281,407,759.88x = 60,569,062,463,756,208
  5. Step 5: Solve for x
    x = 60,569,062,463,756,208/281,407,759.88
  6. Step 6: Final answer
    x = 215,235,935.53

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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.