Home / 20,143,692-27,798,329.52-10,976,334.48

Finding the Fourth Proportional to 20,143,692, 27,798,329.52 and 10,976,334.48

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Solution

The fourth proportional to 20,143,692, 27,798,329.52 and 10,976,334.48 is: 15,147,360.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,143,692 : 27,798,329.52 = 10,976,334.48 : x
  2. Step 2: Convert to fraction form
    20,143,692/27,798,329.52 = 10,976,334.48/x
  3. Step 3: Cross multiply
    20,143,692x = 27,798,329.52 × 10,976,334.48
  4. Step 4: Simplify right side
    20,143,692x = 305,123,762,796,777.88
  5. Step 5: Solve for x
    x = 305,123,762,796,777.88/20,143,692
  6. Step 6: Final answer
    x = 15,147,360.41

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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.