Home / 13,729,361.78-18,945,139.37-8,222,595.61

Finding the Fourth Proportional to 13,729,361.78, 18,945,139.37 and 8,222,595.61

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Solution

The fourth proportional to 13,729,361.78, 18,945,139.37 and 8,222,595.61 is: 11,346,355.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,729,361.78 : 18,945,139.37 = 8,222,595.61 : x
  2. Step 2: Convert to fraction form
    13,729,361.78/18,945,139.37 = 8,222,595.61/x
  3. Step 3: Cross multiply
    13,729,361.78x = 18,945,139.37 × 8,222,595.61
  4. Step 4: Simplify right side
    13,729,361.78x = 155,778,219,814,600.19
  5. Step 5: Solve for x
    x = 155,778,219,814,600.19/13,729,361.78
  6. Step 6: Final answer
    x = 11,346,355.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.