Home / 80,939,778.19-178,018,381.13

Finding the Third Proportional to 80,939,778.19 and 178,018,381.13

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Solution

The third proportional to 80,939,778.19 and 178,018,381.13 is: 391,532,380.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,939,778.19 : 178,018,381.13 = 178,018,381.13 : x
  2. Step 2: Convert to fraction form
    80,939,778.19/178,018,381.13 = 178,018,381.13/x
  3. Step 3: Cross multiply
    80,939,778.19x = 178,018,381.13 × 178,018,381.13
  4. Step 4: Simplify right side
    80,939,778.19x = 31,690,544,018,365,756
  5. Step 5: Solve for x
    x = 31,690,544,018,365,756/80,939,778.19
  6. Step 6: Final answer
    x = 391,532,380.35

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.