Home / 12,831,750.20-19,247,625.30-11,981,444.60

Finding the Fourth Proportional to 12,831,750.20, 19,247,625.30 and 11,981,444.60

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Solution

The fourth proportional to 12,831,750.20, 19,247,625.30 and 11,981,444.60 is: 17,972,166.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,831,750.20 : 19,247,625.30 = 11,981,444.60 : x
  2. Step 2: Convert to fraction form
    12,831,750.20/19,247,625.30 = 11,981,444.60/x
  3. Step 3: Cross multiply
    12,831,750.20x = 19,247,625.30 × 11,981,444.60
  4. Step 4: Simplify right side
    12,831,750.20x = 230,614,356,213,508.38
  5. Step 5: Solve for x
    x = 230,614,356,213,508.38/12,831,750.20
  6. Step 6: Final answer
    x = 17,972,166.90

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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.