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Finding the Third Proportional to 6,928,992 and 15,117,120

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Solution

The third proportional to 6,928,992 and 15,117,120 is: 32,981,322.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,928,992 : 15,117,120 = 15,117,120 : x
  2. Step 2: Convert to fraction form
    6,928,992/15,117,120 = 15,117,120/x
  3. Step 3: Cross multiply
    6,928,992x = 15,117,120 × 15,117,120
  4. Step 4: Simplify right side
    6,928,992x = 228,527,317,094,400
  5. Step 5: Solve for x
    x = 228,527,317,094,400/6,928,992
  6. Step 6: Final answer
    x = 32,981,322.12

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.