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Finding the Third Proportional to 18,851,622.75 and 40,679,172

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Solution

The third proportional to 18,851,622.75 and 40,679,172 is: 87,779,978.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,851,622.75 : 40,679,172 = 40,679,172 : x
  2. Step 2: Convert to fraction form
    18,851,622.75/40,679,172 = 40,679,172/x
  3. Step 3: Cross multiply
    18,851,622.75x = 40,679,172 × 40,679,172
  4. Step 4: Simplify right side
    18,851,622.75x = 1,654,795,034,605,584
  5. Step 5: Solve for x
    x = 1,654,795,034,605,584/18,851,622.75
  6. Step 6: Final answer
    x = 87,779,978.23

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.