Home / 258,959,264.66-388,177,105.79-111,502,987.61

Finding the Fourth Proportional to 258,959,264.66, 388,177,105.79 and 111,502,987.61

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Solution

The fourth proportional to 258,959,264.66, 388,177,105.79 and 111,502,987.61 is: 167,141,759.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,959,264.66 : 388,177,105.79 = 111,502,987.61 : x
  2. Step 2: Convert to fraction form
    258,959,264.66/388,177,105.79 = 111,502,987.61/x
  3. Step 3: Cross multiply
    258,959,264.66x = 388,177,105.79 × 111,502,987.61
  4. Step 4: Simplify right side
    258,959,264.66x = 43,282,907,017,388,032
  5. Step 5: Solve for x
    x = 43,282,907,017,388,032/258,959,264.66
  6. Step 6: Final answer
    x = 167,141,759.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.