Home / 777,279,918.78-1,166,124,076.74-279,340,707.92

Finding the Fourth Proportional to 777,279,918.78, 1,166,124,076.74 and 279,340,707.92

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Solution

The fourth proportional to 777,279,918.78, 1,166,124,076.74 and 279,340,707.92 is: 419,084,447.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,279,918.78 : 1,166,124,076.74 = 279,340,707.92 : x
  2. Step 2: Convert to fraction form
    777,279,918.78/1,166,124,076.74 = 279,340,707.92/x
  3. Step 3: Cross multiply
    777,279,918.78x = 1,166,124,076.74 × 279,340,707.92
  4. Step 4: Simplify right side
    777,279,918.78x = 325,745,925,113,277,440
  5. Step 5: Solve for x
    x = 325,745,925,113,277,440/777,279,918.78
  6. Step 6: Final answer
    x = 419,084,447.24

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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.