Home / 20,146,922.88-27,801,942.24-10,979,368.80

Finding the Fourth Proportional to 20,146,922.88, 27,801,942.24 and 10,979,368.80

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Solution

The fourth proportional to 20,146,922.88, 27,801,942.24 and 10,979,368.80 is: 15,151,086.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,146,922.88 : 27,801,942.24 = 10,979,368.80 : x
  2. Step 2: Convert to fraction form
    20,146,922.88/27,801,942.24 = 10,979,368.80/x
  3. Step 3: Cross multiply
    20,146,922.88x = 27,801,942.24 × 10,979,368.80
  4. Step 4: Simplify right side
    20,146,922.88x = 305,247,777,209,258.12
  5. Step 5: Solve for x
    x = 305,247,777,209,258.12/20,146,922.88
  6. Step 6: Final answer
    x = 15,151,086.80

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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.