Home / 258,976,936.40-388,465,404.60-237,813,774.80

Finding the Fourth Proportional to 258,976,936.40, 388,465,404.60 and 237,813,774.80

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Solution

The fourth proportional to 258,976,936.40, 388,465,404.60 and 237,813,774.80 is: 356,720,662.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,976,936.40 : 388,465,404.60 = 237,813,774.80 : x
  2. Step 2: Convert to fraction form
    258,976,936.40/388,465,404.60 = 237,813,774.80/x
  3. Step 3: Cross multiply
    258,976,936.40x = 388,465,404.60 × 237,813,774.80
  4. Step 4: Simplify right side
    258,976,936.40x = 92,382,424,247,135,296
  5. Step 5: Solve for x
    x = 92,382,424,247,135,296/258,976,936.40
  6. Step 6: Final answer
    x = 356,720,662.20

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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.