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Finding the Third Proportional to 3,891,933 and 8,516,947.50

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Solution

The third proportional to 3,891,933 and 8,516,947.50 is: 18,638,140.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,891,933 : 8,516,947.50 = 8,516,947.50 : x
  2. Step 2: Convert to fraction form
    3,891,933/8,516,947.50 = 8,516,947.50/x
  3. Step 3: Cross multiply
    3,891,933x = 8,516,947.50 × 8,516,947.50
  4. Step 4: Simplify right side
    3,891,933x = 72,538,394,717,756.25
  5. Step 5: Solve for x
    x = 72,538,394,717,756.25/3,891,933
  6. Step 6: Final answer
    x = 18,638,140.67

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.