Home / 39,450,413.73-54,436,855.29-21,806,932.78

Finding the Fourth Proportional to 39,450,413.73, 54,436,855.29 and 21,806,932.78

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Solution

The fourth proportional to 39,450,413.73, 54,436,855.29 and 21,806,932.78 is: 30,090,960.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,450,413.73 : 54,436,855.29 = 21,806,932.78 : x
  2. Step 2: Convert to fraction form
    39,450,413.73/54,436,855.29 = 21,806,932.78/x
  3. Step 3: Cross multiply
    39,450,413.73x = 54,436,855.29 × 21,806,932.78
  4. Step 4: Simplify right side
    39,450,413.73x = 1,187,100,843,927,525.25
  5. Step 5: Solve for x
    x = 1,187,100,843,927,525.25/39,450,413.73
  6. Step 6: Final answer
    x = 30,090,960.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.