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Finding the Third Proportional to 79,682,936 and 117,245,823.50

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Solution

The third proportional to 79,682,936 and 117,245,823.50 is: 172,516,021.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,682,936 : 117,245,823.50 = 117,245,823.50 : x
  2. Step 2: Convert to fraction form
    79,682,936/117,245,823.50 = 117,245,823.50/x
  3. Step 3: Cross multiply
    79,682,936x = 117,245,823.50 × 117,245,823.50
  4. Step 4: Simplify right side
    79,682,936x = 13,746,583,128,193,152
  5. Step 5: Solve for x
    x = 13,746,583,128,193,152/79,682,936
  6. Step 6: Final answer
    x = 172,516,021.85

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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.