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Finding the Third Proportional to 13,190,931 and 20,384,343

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Solution

The third proportional to 13,190,931 and 20,384,343 is: 31,500,539.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,190,931 : 20,384,343 = 20,384,343 : x
  2. Step 2: Convert to fraction form
    13,190,931/20,384,343 = 20,384,343/x
  3. Step 3: Cross multiply
    13,190,931x = 20,384,343 × 20,384,343
  4. Step 4: Simplify right side
    13,190,931x = 415,521,439,541,649
  5. Step 5: Solve for x
    x = 415,521,439,541,649/13,190,931
  6. Step 6: Final answer
    x = 31,500,539.24

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.