Home / 7,259,658.78-10,889,414.36-1,868,288.25

Finding the Fourth Proportional to 7,259,658.78, 10,889,414.36 and 1,868,288.25

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Solution

The fourth proportional to 7,259,658.78, 10,889,414.36 and 1,868,288.25 is: 2,802,413.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,259,658.78 : 10,889,414.36 = 1,868,288.25 : x
  2. Step 2: Convert to fraction form
    7,259,658.78/10,889,414.36 = 1,868,288.25/x
  3. Step 3: Cross multiply
    7,259,658.78x = 10,889,414.36 × 1,868,288.25
  4. Step 4: Simplify right side
    7,259,658.78x = 20,344,564,936,669.21
  5. Step 5: Solve for x
    x = 20,344,564,936,669.21/7,259,658.78
  6. Step 6: Final answer
    x = 2,802,413.38

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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.