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Finding the Third Proportional to 9,978,912 and 13,903,137

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Solution

The third proportional to 9,978,912 and 13,903,137 is: 19,370,570.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,978,912 : 13,903,137 = 13,903,137 : x
  2. Step 2: Convert to fraction form
    9,978,912/13,903,137 = 13,903,137/x
  3. Step 3: Cross multiply
    9,978,912x = 13,903,137 × 13,903,137
  4. Step 4: Simplify right side
    9,978,912x = 193,297,218,440,769
  5. Step 5: Solve for x
    x = 193,297,218,440,769/9,978,912
  6. Step 6: Final answer
    x = 19,370,570.50

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These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.