Home / 218,563,936.23-327,809,993.64-78,475,393.58

Finding the Fourth Proportional to 218,563,936.23, 327,809,993.64 and 78,475,393.58

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Solution

The fourth proportional to 218,563,936.23, 327,809,993.64 and 78,475,393.58 is: 117,700,196.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,563,936.23 : 327,809,993.64 = 78,475,393.58 : x
  2. Step 2: Convert to fraction form
    218,563,936.23/327,809,993.64 = 78,475,393.58/x
  3. Step 3: Cross multiply
    218,563,936.23x = 327,809,993.64 × 78,475,393.58
  4. Step 4: Simplify right side
    218,563,936.23x = 25,725,018,268,682,320
  5. Step 5: Solve for x
    x = 25,725,018,268,682,320/218,563,936.23
  6. Step 6: Final answer
    x = 117,700,196.62

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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.