Home / 21,723,453.12-29,978,672.34-11,934,801.96

Finding the Fourth Proportional to 21,723,453.12, 29,978,672.34 and 11,934,801.96

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Solution

The fourth proportional to 21,723,453.12, 29,978,672.34 and 11,934,801.96 is: 16,470,195.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,723,453.12 : 29,978,672.34 = 11,934,801.96 : x
  2. Step 2: Convert to fraction form
    21,723,453.12/29,978,672.34 = 11,934,801.96/x
  3. Step 3: Cross multiply
    21,723,453.12x = 29,978,672.34 × 11,934,801.96
  4. Step 4: Simplify right side
    21,723,453.12x = 357,789,517,401,629.81
  5. Step 5: Solve for x
    x = 357,789,517,401,629.81/21,723,453.12
  6. Step 6: Final answer
    x = 16,470,195.39

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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.