Home / 77,279,969.72-115,940,861.22-26,161,992.92

Finding the Fourth Proportional to 77,279,969.72, 115,940,861.22 and 26,161,992.92

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Solution

The fourth proportional to 77,279,969.72, 115,940,861.22 and 26,161,992.92 is: 39,250,067.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,279,969.72 : 115,940,861.22 = 26,161,992.92 : x
  2. Step 2: Convert to fraction form
    77,279,969.72/115,940,861.22 = 26,161,992.92/x
  3. Step 3: Cross multiply
    77,279,969.72x = 115,940,861.22 × 26,161,992.92
  4. Step 4: Simplify right side
    77,279,969.72x = 3,033,243,990,376,342.50
  5. Step 5: Solve for x
    x = 3,033,243,990,376,342.50/77,279,969.72
  6. Step 6: Final answer
    x = 39,250,067.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.