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Finding the Third Proportional to 55,321,681.50 and 81,188,907.75

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Solution

The third proportional to 55,321,681.50 and 81,188,907.75 is: 119,151,091.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,321,681.50 : 81,188,907.75 = 81,188,907.75 : x
  2. Step 2: Convert to fraction form
    55,321,681.50/81,188,907.75 = 81,188,907.75/x
  3. Step 3: Cross multiply
    55,321,681.50x = 81,188,907.75 × 81,188,907.75
  4. Step 4: Simplify right side
    55,321,681.50x = 6,591,638,741,638,010
  5. Step 5: Solve for x
    x = 6,591,638,741,638,010/55,321,681.50
  6. Step 6: Final answer
    x = 119,151,091.63

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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.