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Finding the Fourth Proportional to 269,568,331.70, 404,352,497.55 and 258,986,750.90

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Solution

The fourth proportional to 269,568,331.70, 404,352,497.55 and 258,986,750.90 is: 388,480,126.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,568,331.70 : 404,352,497.55 = 258,986,750.90 : x
  2. Step 2: Convert to fraction form
    269,568,331.70/404,352,497.55 = 258,986,750.90/x
  3. Step 3: Cross multiply
    269,568,331.70x = 404,352,497.55 × 258,986,750.90
  4. Step 4: Simplify right side
    269,568,331.70x = 104,721,939,558,774,720
  5. Step 5: Solve for x
    x = 104,721,939,558,774,720/269,568,331.70
  6. Step 6: Final answer
    x = 388,480,126.35

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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.