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Finding the Third Proportional to 55,321,710 and 81,188,950

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Solution

The third proportional to 55,321,710 and 81,188,950 is: 119,151,154.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,321,710 : 81,188,950 = 81,188,950 : x
  2. Step 2: Convert to fraction form
    55,321,710/81,188,950 = 81,188,950/x
  3. Step 3: Cross multiply
    55,321,710x = 81,188,950 × 81,188,950
  4. Step 4: Simplify right side
    55,321,710x = 6,591,645,602,102,500
  5. Step 5: Solve for x
    x = 6,591,645,602,102,500/55,321,710
  6. Step 6: Final answer
    x = 119,151,154.26

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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.