Home / 54,378,817.37-81,567,427.38-13,438,255.40

Finding the Fourth Proportional to 54,378,817.37, 81,567,427.38 and 13,438,255.40

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Solution

The fourth proportional to 54,378,817.37, 81,567,427.38 and 13,438,255.40 is: 20,157,185.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,378,817.37 : 81,567,427.38 = 13,438,255.40 : x
  2. Step 2: Convert to fraction form
    54,378,817.37/81,567,427.38 = 13,438,255.40/x
  3. Step 3: Cross multiply
    54,378,817.37x = 81,567,427.38 × 13,438,255.40
  4. Step 4: Simplify right side
    54,378,817.37x = 1,096,123,921,301,040.12
  5. Step 5: Solve for x
    x = 1,096,123,921,301,040.12/54,378,817.37
  6. Step 6: Final answer
    x = 20,157,185.73

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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.