Home / 20,131,829.04-27,780,933.81-11,428,859.37

Finding the Fourth Proportional to 20,131,829.04, 27,780,933.81 and 11,428,859.37

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Solution

The fourth proportional to 20,131,829.04, 27,780,933.81 and 11,428,859.37 is: 15,771,263.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,131,829.04 : 27,780,933.81 = 11,428,859.37 : x
  2. Step 2: Convert to fraction form
    20,131,829.04/27,780,933.81 = 11,428,859.37/x
  3. Step 3: Cross multiply
    20,131,829.04x = 27,780,933.81 × 11,428,859.37
  4. Step 4: Simplify right side
    20,131,829.04x = 317,504,385,681,768.25
  5. Step 5: Solve for x
    x = 317,504,385,681,768.25/20,131,829.04
  6. Step 6: Final answer
    x = 15,771,263.76

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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.