Home / 20,209,872.32-27,889,596.27-11,508,044.91

Finding the Fourth Proportional to 20,209,872.32, 27,889,596.27 and 11,508,044.91

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Solution

The fourth proportional to 20,209,872.32, 27,889,596.27 and 11,508,044.91 is: 15,881,086.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,209,872.32 : 27,889,596.27 = 11,508,044.91 : x
  2. Step 2: Convert to fraction form
    20,209,872.32/27,889,596.27 = 11,508,044.91/x
  3. Step 3: Cross multiply
    20,209,872.32x = 27,889,596.27 × 11,508,044.91
  4. Step 4: Simplify right side
    20,209,872.32x = 320,954,726,199,940.25
  5. Step 5: Solve for x
    x = 320,954,726,199,940.25/20,209,872.32
  6. Step 6: Final answer
    x = 15,881,086.29

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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.