Home / 21,723,021.05-29,977,788.69-11,934,099.36

Finding the Fourth Proportional to 21,723,021.05, 29,977,788.69 and 11,934,099.36

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Solution

The fourth proportional to 21,723,021.05, 29,977,788.69 and 11,934,099.36 is: 16,469,067.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,723,021.05 : 29,977,788.69 = 11,934,099.36 : x
  2. Step 2: Convert to fraction form
    21,723,021.05/29,977,788.69 = 11,934,099.36/x
  3. Step 3: Cross multiply
    21,723,021.05x = 29,977,788.69 × 11,934,099.36
  4. Step 4: Simplify right side
    21,723,021.05x = 357,757,908,819,544.25
  5. Step 5: Solve for x
    x = 357,757,908,819,544.25/21,723,021.05
  6. Step 6: Final answer
    x = 16,469,067.91

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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.