Home / 13,398,568.25-18,490,033.30-7,517,390.56

Finding the Fourth Proportional to 13,398,568.25, 18,490,033.30 and 7,517,390.56

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Solution

The fourth proportional to 13,398,568.25, 18,490,033.30 and 7,517,390.56 is: 10,374,004.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,398,568.25 : 18,490,033.30 = 7,517,390.56 : x
  2. Step 2: Convert to fraction form
    13,398,568.25/18,490,033.30 = 7,517,390.56/x
  3. Step 3: Cross multiply
    13,398,568.25x = 18,490,033.30 × 7,517,390.56
  4. Step 4: Simplify right side
    13,398,568.25x = 138,996,801,783,505.64
  5. Step 5: Solve for x
    x = 138,996,801,783,505.64/13,398,568.25
  6. Step 6: Final answer
    x = 10,374,004.09

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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.