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Finding the Third Proportional to 6,979,468.78 and 15,336,670.68

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Solution

The third proportional to 6,979,468.78 and 15,336,670.68 is: 33,700,769.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,979,468.78 : 15,336,670.68 = 15,336,670.68 : x
  2. Step 2: Convert to fraction form
    6,979,468.78/15,336,670.68 = 15,336,670.68/x
  3. Step 3: Cross multiply
    6,979,468.78x = 15,336,670.68 × 15,336,670.68
  4. Step 4: Simplify right side
    6,979,468.78x = 235,213,467,417,391.53
  5. Step 5: Solve for x
    x = 235,213,467,417,391.53/6,979,468.78
  6. Step 6: Final answer
    x = 33,700,769.33

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.