Home / 20,551,891.74-30,823,979.37-10,314,005.28

Finding the Fourth Proportional to 20,551,891.74, 30,823,979.37 and 10,314,005.28

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Solution

The fourth proportional to 20,551,891.74, 30,823,979.37 and 10,314,005.28 is: 15,469,071.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,551,891.74 : 30,823,979.37 = 10,314,005.28 : x
  2. Step 2: Convert to fraction form
    20,551,891.74/30,823,979.37 = 10,314,005.28/x
  3. Step 3: Cross multiply
    20,551,891.74x = 30,823,979.37 × 10,314,005.28
  4. Step 4: Simplify right side
    20,551,891.74x = 317,918,685,972,791.06
  5. Step 5: Solve for x
    x = 317,918,685,972,791.06/20,551,891.74
  6. Step 6: Final answer
    x = 15,469,071.66

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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.