Home / 1,078,891,745.49-1,617,682,283.42-423,057,072.33

Finding the Fourth Proportional to 1,078,891,745.49, 1,617,682,283.42 and 423,057,072.33

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Solution

The fourth proportional to 1,078,891,745.49, 1,617,682,283.42 and 423,057,072.33 is: 634,328,637.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,891,745.49 : 1,617,682,283.42 = 423,057,072.33 : x
  2. Step 2: Convert to fraction form
    1,078,891,745.49/1,617,682,283.42 = 423,057,072.33/x
  3. Step 3: Cross multiply
    1,078,891,745.49x = 1,617,682,283.42 × 423,057,072.33
  4. Step 4: Simplify right side
    1,078,891,745.49x = 684,371,930,781,659,136
  5. Step 5: Solve for x
    x = 684,371,930,781,659,136/1,078,891,745.49
  6. Step 6: Final answer
    x = 634,328,637.37

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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.