Home / 7,831,609.38-11,747,980.27-3,278,078.55

Finding the Fourth Proportional to 7,831,609.38, 11,747,980.27 and 3,278,078.55

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Solution

The fourth proportional to 7,831,609.38, 11,747,980.27 and 3,278,078.55 is: 4,917,354.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,831,609.38 : 11,747,980.27 = 3,278,078.55 : x
  2. Step 2: Convert to fraction form
    7,831,609.38/11,747,980.27 = 3,278,078.55/x
  3. Step 3: Cross multiply
    7,831,609.38x = 11,747,980.27 × 3,278,078.55
  4. Step 4: Simplify right side
    7,831,609.38x = 38,510,802,158,623.54
  5. Step 5: Solve for x
    x = 38,510,802,158,623.54/7,831,609.38
  6. Step 6: Final answer
    x = 4,917,354.82

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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.