Home / 31,195,499.89-43,035,282.97-20,185,803.72

Finding the Fourth Proportional to 31,195,499.89, 43,035,282.97 and 20,185,803.72

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Solution

The fourth proportional to 31,195,499.89, 43,035,282.97 and 20,185,803.72 is: 27,847,022.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,195,499.89 : 43,035,282.97 = 20,185,803.72 : x
  2. Step 2: Convert to fraction form
    31,195,499.89/43,035,282.97 = 20,185,803.72/x
  3. Step 3: Cross multiply
    31,195,499.89x = 43,035,282.97 × 20,185,803.72
  4. Step 4: Simplify right side
    31,195,499.89x = 868,701,775,067,078.62
  5. Step 5: Solve for x
    x = 868,701,775,067,078.62/31,195,499.89
  6. Step 6: Final answer
    x = 27,847,022.11

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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.