Home / 31,780,138.97-47,670,651.32-9,061,036.22

Finding the Fourth Proportional to 31,780,138.97, 47,670,651.32 and 9,061,036.22

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Solution

The fourth proportional to 31,780,138.97, 47,670,651.32 and 9,061,036.22 is: 13,591,680.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,780,138.97 : 47,670,651.32 = 9,061,036.22 : x
  2. Step 2: Convert to fraction form
    31,780,138.97/47,670,651.32 = 9,061,036.22/x
  3. Step 3: Cross multiply
    31,780,138.97x = 47,670,651.32 × 9,061,036.22
  4. Step 4: Simplify right side
    31,780,138.97x = 431,945,497,957,852.38
  5. Step 5: Solve for x
    x = 431,945,497,957,852.38/31,780,138.97
  6. Step 6: Final answer
    x = 13,591,680.59

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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.