Home / 7,831,610.38-11,747,981.77-3,278,079.55

Finding the Fourth Proportional to 7,831,610.38, 11,747,981.77 and 3,278,079.55

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Solution

The fourth proportional to 7,831,610.38, 11,747,981.77 and 3,278,079.55 is: 4,917,356.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,831,610.38 : 11,747,981.77 = 3,278,079.55 : x
  2. Step 2: Convert to fraction form
    7,831,610.38/11,747,981.77 = 3,278,079.55/x
  3. Step 3: Cross multiply
    7,831,610.38x = 11,747,981.77 × 3,278,079.55
  4. Step 4: Simplify right side
    7,831,610.38x = 38,510,818,794,009.80
  5. Step 5: Solve for x
    x = 38,510,818,794,009.80/7,831,610.38
  6. Step 6: Final answer
    x = 4,917,356.32

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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.