Home / 21,879,576.07-30,213,181.88-13,633,711.27

Finding the Fourth Proportional to 21,879,576.07, 30,213,181.88 and 13,633,711.27

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Solution

The fourth proportional to 21,879,576.07, 30,213,181.88 and 13,633,711.27 is: 18,826,589.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,879,576.07 : 30,213,181.88 = 13,633,711.27 : x
  2. Step 2: Convert to fraction form
    21,879,576.07/30,213,181.88 = 13,633,711.27/x
  3. Step 3: Cross multiply
    21,879,576.07x = 30,213,181.88 × 13,633,711.27
  4. Step 4: Simplify right side
    21,879,576.07x = 411,917,798,207,340.69
  5. Step 5: Solve for x
    x = 411,917,798,207,340.69/21,879,576.07
  6. Step 6: Final answer
    x = 18,826,589.55

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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.