Home / 218,673,856.31-328,093,394.67-131,296,299.23

Finding the Fourth Proportional to 218,673,856.31, 328,093,394.67 and 131,296,299.23

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Solution

The fourth proportional to 218,673,856.31, 328,093,394.67 and 131,296,299.23 is: 196,994,049.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,673,856.31 : 328,093,394.67 = 131,296,299.23 : x
  2. Step 2: Convert to fraction form
    218,673,856.31/328,093,394.67 = 131,296,299.23/x
  3. Step 3: Cross multiply
    218,673,856.31x = 328,093,394.67 × 131,296,299.23
  4. Step 4: Simplify right side
    218,673,856.31x = 43,077,448,522,799,040
  5. Step 5: Solve for x
    x = 43,077,448,522,799,040/218,673,856.31
  6. Step 6: Final answer
    x = 196,994,049.73

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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.