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Finding the Third Proportional to 15,445,908 and 20,977,272

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Solution

The third proportional to 15,445,908 and 20,977,272 is: 28,489,483.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,445,908 : 20,977,272 = 20,977,272 : x
  2. Step 2: Convert to fraction form
    15,445,908/20,977,272 = 20,977,272/x
  3. Step 3: Cross multiply
    15,445,908x = 20,977,272 × 20,977,272
  4. Step 4: Simplify right side
    15,445,908x = 440,045,940,561,984
  5. Step 5: Solve for x
    x = 440,045,940,561,984/15,445,908
  6. Step 6: Final answer
    x = 28,489,483.46

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.