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Finding the Third Proportional to 20,662,209 and 45,044,721

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Solution

The third proportional to 20,662,209 and 45,044,721 is: 98,199,901.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,662,209 : 45,044,721 = 45,044,721 : x
  2. Step 2: Convert to fraction form
    20,662,209/45,044,721 = 45,044,721/x
  3. Step 3: Cross multiply
    20,662,209x = 45,044,721 × 45,044,721
  4. Step 4: Simplify right side
    20,662,209x = 2,029,026,889,967,841
  5. Step 5: Solve for x
    x = 2,029,026,889,967,841/20,662,209
  6. Step 6: Final answer
    x = 98,199,901.57

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.