Home / 20,209,726.97-27,889,423.22-11,042,369.72

Finding the Fourth Proportional to 20,209,726.97, 27,889,423.22 and 11,042,369.72

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Solution

The fourth proportional to 20,209,726.97, 27,889,423.22 and 11,042,369.72 is: 15,238,470.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,209,726.97 : 27,889,423.22 = 11,042,369.72 : x
  2. Step 2: Convert to fraction form
    20,209,726.97/27,889,423.22 = 11,042,369.72/x
  3. Step 3: Cross multiply
    20,209,726.97x = 27,889,423.22 × 11,042,369.72
  4. Step 4: Simplify right side
    20,209,726.97x = 307,965,322,403,423.75
  5. Step 5: Solve for x
    x = 307,965,322,403,423.75/20,209,726.97
  6. Step 6: Final answer
    x = 15,238,470.21

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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.