Home / 21,889,181.88-30,207,131.87-11,966,184.48

Finding the Fourth Proportional to 21,889,181.88, 30,207,131.87 and 11,966,184.48

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Solution

The fourth proportional to 21,889,181.88, 30,207,131.87 and 11,966,184.48 is: 16,513,367.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,889,181.88 : 30,207,131.87 = 11,966,184.48 : x
  2. Step 2: Convert to fraction form
    21,889,181.88/30,207,131.87 = 11,966,184.48/x
  3. Step 3: Cross multiply
    21,889,181.88x = 30,207,131.87 × 11,966,184.48
  4. Step 4: Simplify right side
    21,889,181.88x = 361,464,112,568,107.38
  5. Step 5: Solve for x
    x = 361,464,112,568,107.38/21,889,181.88
  6. Step 6: Final answer
    x = 16,513,367.86

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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.