Home / 77,665,709.25-120,590,819.72

Finding the Third Proportional to 77,665,709.25 and 120,590,819.72

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Solution

The third proportional to 77,665,709.25 and 120,590,819.72 is: 187,240,236.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,665,709.25 : 120,590,819.72 = 120,590,819.72 : x
  2. Step 2: Convert to fraction form
    77,665,709.25/120,590,819.72 = 120,590,819.72/x
  3. Step 3: Cross multiply
    77,665,709.25x = 120,590,819.72 × 120,590,819.72
  4. Step 4: Simplify right side
    77,665,709.25x = 14,542,145,800,440,064
  5. Step 5: Solve for x
    x = 14,542,145,800,440,064/77,665,709.25
  6. Step 6: Final answer
    x = 187,240,236.92

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.