Home / 31,709,833.38-43,758,825.78-18,657,937.65

Finding the Fourth Proportional to 31,709,833.38, 43,758,825.78 and 18,657,937.65

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Solution

The fourth proportional to 31,709,833.38, 43,758,825.78 and 18,657,937.65 is: 25,747,516.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,709,833.38 : 43,758,825.78 = 18,657,937.65 : x
  2. Step 2: Convert to fraction form
    31,709,833.38/43,758,825.78 = 18,657,937.65/x
  3. Step 3: Cross multiply
    31,709,833.38x = 43,758,825.78 × 18,657,937.65
  4. Step 4: Simplify right side
    31,709,833.38x = 816,449,443,040,452.62
  5. Step 5: Solve for x
    x = 816,449,443,040,452.62/31,709,833.38
  6. Step 6: Final answer
    x = 25,747,516.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.