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Finding the Third Proportional to 21,045,728 and 45,285,568

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Solution

The third proportional to 21,045,728 and 45,285,568 is: 97,444,130.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,045,728 : 45,285,568 = 45,285,568 : x
  2. Step 2: Convert to fraction form
    21,045,728/45,285,568 = 45,285,568/x
  3. Step 3: Cross multiply
    21,045,728x = 45,285,568 × 45,285,568
  4. Step 4: Simplify right side
    21,045,728x = 2,050,782,669,082,624
  5. Step 5: Solve for x
    x = 2,050,782,669,082,624/21,045,728
  6. Step 6: Final answer
    x = 97,444,130.66

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.