Home / 54,378,820.11-81,567,431.52-13,438,258.17

Finding the Fourth Proportional to 54,378,820.11, 81,567,431.52 and 13,438,258.17

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Solution

The fourth proportional to 54,378,820.11, 81,567,431.52 and 13,438,258.17 is: 20,157,189.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,378,820.11 : 81,567,431.52 = 13,438,258.17 : x
  2. Step 2: Convert to fraction form
    54,378,820.11/81,567,431.52 = 13,438,258.17/x
  3. Step 3: Cross multiply
    54,378,820.11x = 81,567,431.52 × 13,438,258.17
  4. Step 4: Simplify right side
    54,378,820.11x = 1,096,124,203,029,555.50
  5. Step 5: Solve for x
    x = 1,096,124,203,029,555.50/54,378,820.11
  6. Step 6: Final answer
    x = 20,157,189.89

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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.