Home / 7,831,617.38-11,747,992.28-3,278,086.56

Finding the Fourth Proportional to 7,831,617.38, 11,747,992.28 and 3,278,086.56

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Solution

The fourth proportional to 7,831,617.38, 11,747,992.28 and 3,278,086.56 is: 4,917,366.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,831,617.38 : 11,747,992.28 = 3,278,086.56 : x
  2. Step 2: Convert to fraction form
    7,831,617.38/11,747,992.28 = 3,278,086.56/x
  3. Step 3: Cross multiply
    7,831,617.38x = 11,747,992.28 × 3,278,086.56
  4. Step 4: Simplify right side
    7,831,617.38x = 38,510,935,600,051.76
  5. Step 5: Solve for x
    x = 38,510,935,600,051.76/7,831,617.38
  6. Step 6: Final answer
    x = 4,917,366.84

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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.