Home / 18,101,489.20-27,149,609.40-5,320,661.20

Finding the Fourth Proportional to 18,101,489.20, 27,149,609.40 and 5,320,661.20

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Solution

The fourth proportional to 18,101,489.20, 27,149,609.40 and 5,320,661.20 is: 7,980,220.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,101,489.20 : 27,149,609.40 = 5,320,661.20 : x
  2. Step 2: Convert to fraction form
    18,101,489.20/27,149,609.40 = 5,320,661.20/x
  3. Step 3: Cross multiply
    18,101,489.20x = 27,149,609.40 × 5,320,661.20
  4. Step 4: Simplify right side
    18,101,489.20x = 144,453,873,329,735.28
  5. Step 5: Solve for x
    x = 144,453,873,329,735.28/18,101,489.20
  6. Step 6: Final answer
    x = 7,980,220.40

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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.