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Finding the Third Proportional to 13,155,420.09 and 20,476,641.80

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Solution

The third proportional to 13,155,420.09 and 20,476,641.80 is: 31,872,251.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,155,420.09 : 20,476,641.80 = 20,476,641.80 : x
  2. Step 2: Convert to fraction form
    13,155,420.09/20,476,641.80 = 20,476,641.80/x
  3. Step 3: Cross multiply
    13,155,420.09x = 20,476,641.80 × 20,476,641.80
  4. Step 4: Simplify right side
    13,155,420.09x = 419,292,859,277,528.25
  5. Step 5: Solve for x
    x = 419,292,859,277,528.25/13,155,420.09
  6. Step 6: Final answer
    x = 31,872,251.61

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.