Home / 15,429,399.75-21,015,561.38

Finding the Third Proportional to 15,429,399.75 and 21,015,561.38

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Solution

The third proportional to 15,429,399.75 and 21,015,561.38 is: 28,624,173.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,429,399.75 : 21,015,561.38 = 21,015,561.38 : x
  2. Step 2: Convert to fraction form
    15,429,399.75/21,015,561.38 = 21,015,561.38/x
  3. Step 3: Cross multiply
    15,429,399.75x = 21,015,561.38 × 21,015,561.38
  4. Step 4: Simplify right side
    15,429,399.75x = 441,653,819,906,391.88
  5. Step 5: Solve for x
    x = 441,653,819,906,391.88/15,429,399.75
  6. Step 6: Final answer
    x = 28,624,173.79

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.