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Finding the Third Proportional to 15,395,861.53 and 21,524,320.69

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Solution

The third proportional to 15,395,861.53 and 21,524,320.69 is: 30,092,267.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,395,861.53 : 21,524,320.69 = 21,524,320.69 : x
  2. Step 2: Convert to fraction form
    15,395,861.53/21,524,320.69 = 21,524,320.69/x
  3. Step 3: Cross multiply
    15,395,861.53x = 21,524,320.69 × 21,524,320.69
  4. Step 4: Simplify right side
    15,395,861.53x = 463,296,381,058,340.50
  5. Step 5: Solve for x
    x = 463,296,381,058,340.50/15,395,861.53
  6. Step 6: Final answer
    x = 30,092,267.34

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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.