Home / 20,146,924.88-27,801,945-10,979,370.80

Finding the Fourth Proportional to 20,146,924.88, 27,801,945 and 10,979,370.80

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Solution

The fourth proportional to 20,146,924.88, 27,801,945 and 10,979,370.80 is: 15,151,089.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,146,924.88 : 27,801,945 = 10,979,370.80 : x
  2. Step 2: Convert to fraction form
    20,146,924.88/27,801,945 = 10,979,370.80/x
  3. Step 3: Cross multiply
    20,146,924.88x = 27,801,945 × 10,979,370.80
  4. Step 4: Simplify right side
    20,146,924.88x = 305,247,863,116,206
  5. Step 5: Solve for x
    x = 305,247,863,116,206/20,146,924.88
  6. Step 6: Final answer
    x = 15,151,089.56

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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.