Home / 54,378,817.86-81,567,428.14-13,438,255.90

Finding the Fourth Proportional to 54,378,817.86, 81,567,428.14 and 13,438,255.90

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Solution

The fourth proportional to 54,378,817.86, 81,567,428.14 and 13,438,255.90 is: 20,157,186.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,378,817.86 : 81,567,428.14 = 13,438,255.90 : x
  2. Step 2: Convert to fraction form
    54,378,817.86/81,567,428.14 = 13,438,255.90/x
  3. Step 3: Cross multiply
    54,378,817.86x = 81,567,428.14 × 13,438,255.90
  4. Step 4: Simplify right side
    54,378,817.86x = 1,096,123,972,450,181.12
  5. Step 5: Solve for x
    x = 1,096,123,972,450,181.12/54,378,817.86
  6. Step 6: Final answer
    x = 20,157,186.49

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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.