Home / 259,111,876.75-388,667,815.14-86,588,690.24

Finding the Fourth Proportional to 259,111,876.75, 388,667,815.14 and 86,588,690.24

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Solution

The fourth proportional to 259,111,876.75, 388,667,815.14 and 86,588,690.24 is: 129,883,035.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,111,876.75 : 388,667,815.14 = 86,588,690.24 : x
  2. Step 2: Convert to fraction form
    259,111,876.75/388,667,815.14 = 86,588,690.24/x
  3. Step 3: Cross multiply
    259,111,876.75x = 388,667,815.14 × 86,588,690.24
  4. Step 4: Simplify right side
    259,111,876.75x = 33,654,237,050,585,388
  5. Step 5: Solve for x
    x = 33,654,237,050,585,388/259,111,876.75
  6. Step 6: Final answer
    x = 129,883,035.36

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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.