Home / 27,647,721.70-38,168,200.83-20,197,017.16

Finding the Fourth Proportional to 27,647,721.70, 38,168,200.83 and 20,197,017.16

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Solution

The fourth proportional to 27,647,721.70, 38,168,200.83 and 20,197,017.16 is: 27,882,362.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,647,721.70 : 38,168,200.83 = 20,197,017.16 : x
  2. Step 2: Convert to fraction form
    27,647,721.70/38,168,200.83 = 20,197,017.16/x
  3. Step 3: Cross multiply
    27,647,721.70x = 38,168,200.83 × 20,197,017.16
  4. Step 4: Simplify right side
    27,647,721.70x = 770,883,807,129,836.25
  5. Step 5: Solve for x
    x = 770,883,807,129,836.25/27,647,721.70
  6. Step 6: Final answer
    x = 27,882,362.80

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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.