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Finding the Third Proportional to 21,054,631.50 and 30,851,961.75

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Solution

The third proportional to 21,054,631.50 and 30,851,961.75 is: 45,208,273.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,054,631.50 : 30,851,961.75 = 30,851,961.75 : x
  2. Step 2: Convert to fraction form
    21,054,631.50/30,851,961.75 = 30,851,961.75/x
  3. Step 3: Cross multiply
    21,054,631.50x = 30,851,961.75 × 30,851,961.75
  4. Step 4: Simplify right side
    21,054,631.50x = 951,843,543,823,463
  5. Step 5: Solve for x
    x = 951,843,543,823,463/21,054,631.50
  6. Step 6: Final answer
    x = 45,208,273.72

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.