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Finding the Third Proportional to 18,861,402.75 and 28,385,538.75

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Solution

The third proportional to 18,861,402.75 and 28,385,538.75 is: 42,718,922.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,861,402.75 : 28,385,538.75 = 28,385,538.75 : x
  2. Step 2: Convert to fraction form
    18,861,402.75/28,385,538.75 = 28,385,538.75/x
  3. Step 3: Cross multiply
    18,861,402.75x = 28,385,538.75 × 28,385,538.75
  4. Step 4: Simplify right side
    18,861,402.75x = 805,738,810,127,751.50
  5. Step 5: Solve for x
    x = 805,738,810,127,751.50/18,861,402.75
  6. Step 6: Final answer
    x = 42,718,922.91

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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.