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Finding the Third Proportional to 64,788,426.75 and 91,673,640.75

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Solution

The third proportional to 64,788,426.75 and 91,673,640.75 is: 129,715,395.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,788,426.75 : 91,673,640.75 = 91,673,640.75 : x
  2. Step 2: Convert to fraction form
    64,788,426.75/91,673,640.75 = 91,673,640.75/x
  3. Step 3: Cross multiply
    64,788,426.75x = 91,673,640.75 × 91,673,640.75
  4. Step 4: Simplify right side
    64,788,426.75x = 8,404,056,408,360,061
  5. Step 5: Solve for x
    x = 8,404,056,408,360,061/64,788,426.75
  6. Step 6: Final answer
    x = 129,715,395.63

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.