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Finding the Third Proportional to 18,971,597.25 and 28,405,393.88

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Solution

The third proportional to 18,971,597.25 and 28,405,393.88 is: 42,530,230.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,971,597.25 : 28,405,393.88 = 28,405,393.88 : x
  2. Step 2: Convert to fraction form
    18,971,597.25/28,405,393.88 = 28,405,393.88/x
  3. Step 3: Cross multiply
    18,971,597.25x = 28,405,393.88 × 28,405,393.88
  4. Step 4: Simplify right side
    18,971,597.25x = 806,866,401,193,887.50
  5. Step 5: Solve for x
    x = 806,866,401,193,887.50/18,971,597.25
  6. Step 6: Final answer
    x = 42,530,230.35

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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.