Home / 777,279,928.78-1,166,124,091.74-279,340,717.92

Finding the Fourth Proportional to 777,279,928.78, 1,166,124,091.74 and 279,340,717.92

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Solution

The fourth proportional to 777,279,928.78, 1,166,124,091.74 and 279,340,717.92 is: 419,084,462.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,279,928.78 : 1,166,124,091.74 = 279,340,717.92 : x
  2. Step 2: Convert to fraction form
    777,279,928.78/1,166,124,091.74 = 279,340,717.92/x
  3. Step 3: Cross multiply
    777,279,928.78x = 1,166,124,091.74 × 279,340,717.92
  4. Step 4: Simplify right side
    777,279,928.78x = 325,745,940,970,459,584
  5. Step 5: Solve for x
    x = 325,745,940,970,459,584/777,279,928.78
  6. Step 6: Final answer
    x = 419,084,462.25

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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.