Home / 20,231,415.04-27,912,978.78-12,382,745.14

Finding the Fourth Proportional to 20,231,415.04, 27,912,978.78 and 12,382,745.14

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Solution

The fourth proportional to 20,231,415.04, 27,912,978.78 and 12,382,745.14 is: 17,084,287.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,231,415.04 : 27,912,978.78 = 12,382,745.14 : x
  2. Step 2: Convert to fraction form
    20,231,415.04/27,912,978.78 = 12,382,745.14/x
  3. Step 3: Cross multiply
    20,231,415.04x = 27,912,978.78 × 12,382,745.14
  4. Step 4: Simplify right side
    20,231,415.04x = 345,639,302,330,968.19
  5. Step 5: Solve for x
    x = 345,639,302,330,968.19/20,231,415.04
  6. Step 6: Final answer
    x = 17,084,287.07

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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.