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Finding the Third Proportional to 18,919,272 and 28,851,288

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Solution

The third proportional to 18,919,272 and 28,851,288 is: 43,997,296.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,919,272 : 28,851,288 = 28,851,288 : x
  2. Step 2: Convert to fraction form
    18,919,272/28,851,288 = 28,851,288/x
  3. Step 3: Cross multiply
    18,919,272x = 28,851,288 × 28,851,288
  4. Step 4: Simplify right side
    18,919,272x = 832,396,819,258,944
  5. Step 5: Solve for x
    x = 832,396,819,258,944/18,919,272
  6. Step 6: Final answer
    x = 43,997,296.47

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.