Home / 259,111,877.75-388,667,816.64-86,588,691.24

Finding the Fourth Proportional to 259,111,877.75, 388,667,816.64 and 86,588,691.24

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Solution

The fourth proportional to 259,111,877.75, 388,667,816.64 and 86,588,691.24 is: 129,883,036.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,111,877.75 : 388,667,816.64 = 86,588,691.24 : x
  2. Step 2: Convert to fraction form
    259,111,877.75/388,667,816.64 = 86,588,691.24/x
  3. Step 3: Cross multiply
    259,111,877.75x = 388,667,816.64 × 86,588,691.24
  4. Step 4: Simplify right side
    259,111,877.75x = 33,654,237,569,965,892
  5. Step 5: Solve for x
    x = 33,654,237,569,965,892/259,111,877.75
  6. Step 6: Final answer
    x = 129,883,036.87

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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.