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Finding the Third Proportional to 10,798,078.50 and 15,278,947.50

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Solution

The third proportional to 10,798,078.50 and 15,278,947.50 is: 21,619,238.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,798,078.50 : 15,278,947.50 = 15,278,947.50 : x
  2. Step 2: Convert to fraction form
    10,798,078.50/15,278,947.50 = 15,278,947.50/x
  3. Step 3: Cross multiply
    10,798,078.50x = 15,278,947.50 × 15,278,947.50
  4. Step 4: Simplify right side
    10,798,078.50x = 233,446,236,707,756.25
  5. Step 5: Solve for x
    x = 233,446,236,707,756.25/10,798,078.50
  6. Step 6: Final answer
    x = 21,619,238.71

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.