Home / 12,831,752.70-19,247,629.05-11,981,447.10

Finding the Fourth Proportional to 12,831,752.70, 19,247,629.05 and 11,981,447.10

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Solution

The fourth proportional to 12,831,752.70, 19,247,629.05 and 11,981,447.10 is: 17,972,170.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,831,752.70 : 19,247,629.05 = 11,981,447.10 : x
  2. Step 2: Convert to fraction form
    12,831,752.70/19,247,629.05 = 11,981,447.10/x
  3. Step 3: Cross multiply
    12,831,752.70x = 19,247,629.05 × 11,981,447.10
  4. Step 4: Simplify right side
    12,831,752.70x = 230,614,449,262,998.25
  5. Step 5: Solve for x
    x = 230,614,449,262,998.25/12,831,752.70
  6. Step 6: Final answer
    x = 17,972,170.65

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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.