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Finding the Third Proportional to 21,206,069 and 45,761,555

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Solution

The third proportional to 21,206,069 and 45,761,555 is: 98,750,971.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,206,069 : 45,761,555 = 45,761,555 : x
  2. Step 2: Convert to fraction form
    21,206,069/45,761,555 = 45,761,555/x
  3. Step 3: Cross multiply
    21,206,069x = 45,761,555 × 45,761,555
  4. Step 4: Simplify right side
    21,206,069x = 2,094,119,916,018,025
  5. Step 5: Solve for x
    x = 2,094,119,916,018,025/21,206,069
  6. Step 6: Final answer
    x = 98,750,971.53

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.