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Finding the Third Proportional to 18,971,496 and 28,405,188

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Solution

The third proportional to 18,971,496 and 28,405,188 is: 42,529,840.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,971,496 : 28,405,188 = 28,405,188 : x
  2. Step 2: Convert to fraction form
    18,971,496/28,405,188 = 28,405,188/x
  3. Step 3: Cross multiply
    18,971,496x = 28,405,188 × 28,405,188
  4. Step 4: Simplify right side
    18,971,496x = 806,854,705,315,344
  5. Step 5: Solve for x
    x = 806,854,705,315,344/18,971,496
  6. Step 6: Final answer
    x = 42,529,840.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.