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Finding the Third Proportional to 15,481,086 and 21,655,073.25

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Solution

The third proportional to 15,481,086 and 21,655,073.25 is: 30,291,298.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,481,086 : 21,655,073.25 = 21,655,073.25 : x
  2. Step 2: Convert to fraction form
    15,481,086/21,655,073.25 = 21,655,073.25/x
  3. Step 3: Cross multiply
    15,481,086x = 21,655,073.25 × 21,655,073.25
  4. Step 4: Simplify right side
    15,481,086x = 468,942,197,462,865.56
  5. Step 5: Solve for x
    x = 468,942,197,462,865.56/15,481,086
  6. Step 6: Final answer
    x = 30,291,298.52

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.