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Finding the Third Proportional to 13,488,660 and 20,570,868

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Solution

The third proportional to 13,488,660 and 20,570,868 is: 31,371,582.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,488,660 : 20,570,868 = 20,570,868 : x
  2. Step 2: Convert to fraction form
    13,488,660/20,570,868 = 20,570,868/x
  3. Step 3: Cross multiply
    13,488,660x = 20,570,868 × 20,570,868
  4. Step 4: Simplify right side
    13,488,660x = 423,160,610,273,424
  5. Step 5: Solve for x
    x = 423,160,610,273,424/13,488,660
  6. Step 6: Final answer
    x = 31,371,582.52

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.