Home / 265,285,778.94-397,932,792.80-78,558,610.84

Finding the Fourth Proportional to 265,285,778.94, 397,932,792.80 and 78,558,610.84

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Solution

The fourth proportional to 265,285,778.94, 397,932,792.80 and 78,558,610.84 is: 117,839,137.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,285,778.94 : 397,932,792.80 = 78,558,610.84 : x
  2. Step 2: Convert to fraction form
    265,285,778.94/397,932,792.80 = 78,558,610.84/x
  3. Step 3: Cross multiply
    265,285,778.94x = 397,932,792.80 × 78,558,610.84
  4. Step 4: Simplify right side
    265,285,778.94x = 31,261,047,410,049,556
  5. Step 5: Solve for x
    x = 31,261,047,410,049,556/265,285,778.94
  6. Step 6: Final answer
    x = 117,839,137.61

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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.