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Finding the Third Proportional to 18,979,968 and 28,736,127

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Solution

The third proportional to 18,979,968 and 28,736,127 is: 43,507,185.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,979,968 : 28,736,127 = 28,736,127 : x
  2. Step 2: Convert to fraction form
    18,979,968/28,736,127 = 28,736,127/x
  3. Step 3: Cross multiply
    18,979,968x = 28,736,127 × 28,736,127
  4. Step 4: Simplify right side
    18,979,968x = 825,764,994,960,129
  5. Step 5: Solve for x
    x = 825,764,994,960,129/18,979,968
  6. Step 6: Final answer
    x = 43,507,185.84

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.