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Finding the Third Proportional to 8,128,804.50 and 11,968,638.75

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Solution

The third proportional to 8,128,804.50 and 11,968,638.75 is: 17,622,310.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,128,804.50 : 11,968,638.75 = 11,968,638.75 : x
  2. Step 2: Convert to fraction form
    8,128,804.50/11,968,638.75 = 11,968,638.75/x
  3. Step 3: Cross multiply
    8,128,804.50x = 11,968,638.75 × 11,968,638.75
  4. Step 4: Simplify right side
    8,128,804.50x = 143,248,313,528,001.56
  5. Step 5: Solve for x
    x = 143,248,313,528,001.56/8,128,804.50
  6. Step 6: Final answer
    x = 17,622,310.09

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.