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Finding the Third Proportional to 8,592,978 and 18,719,772

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Solution

The third proportional to 8,592,978 and 18,719,772 is: 40,780,956.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,592,978 : 18,719,772 = 18,719,772 : x
  2. Step 2: Convert to fraction form
    8,592,978/18,719,772 = 18,719,772/x
  3. Step 3: Cross multiply
    8,592,978x = 18,719,772 × 18,719,772
  4. Step 4: Simplify right side
    8,592,978x = 350,429,863,731,984
  5. Step 5: Solve for x
    x = 350,429,863,731,984/8,592,978
  6. Step 6: Final answer
    x = 40,780,956.70

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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.