Home / 7,831,616.38-11,747,990.78-3,278,085.56

Finding the Fourth Proportional to 7,831,616.38, 11,747,990.78 and 3,278,085.56

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Solution

The fourth proportional to 7,831,616.38, 11,747,990.78 and 3,278,085.56 is: 4,917,365.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,831,616.38 : 11,747,990.78 = 3,278,085.56 : x
  2. Step 2: Convert to fraction form
    7,831,616.38/11,747,990.78 = 3,278,085.56/x
  3. Step 3: Cross multiply
    7,831,616.38x = 11,747,990.78 × 3,278,085.56
  4. Step 4: Simplify right side
    7,831,616.38x = 38,510,918,934,931.13
  5. Step 5: Solve for x
    x = 38,510,918,934,931.13/7,831,616.38
  6. Step 6: Final answer
    x = 4,917,365.34

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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.