Home / 259,111,880.74-388,667,821.14-86,588,694.24

Finding the Fourth Proportional to 259,111,880.74, 388,667,821.14 and 86,588,694.24

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Solution

The fourth proportional to 259,111,880.74, 388,667,821.14 and 86,588,694.24 is: 129,883,041.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,111,880.74 : 388,667,821.14 = 86,588,694.24 : x
  2. Step 2: Convert to fraction form
    259,111,880.74/388,667,821.14 = 86,588,694.24/x
  3. Step 3: Cross multiply
    259,111,880.74x = 388,667,821.14 × 86,588,694.24
  4. Step 4: Simplify right side
    259,111,880.74x = 33,654,239,125,618,464
  5. Step 5: Solve for x
    x = 33,654,239,125,618,464/259,111,880.74
  6. Step 6: Final answer
    x = 129,883,041.37

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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.