Home / 123,505,836.35-185,257,696.25-31,389,839.21

Finding the Fourth Proportional to 123,505,836.35, 185,257,696.25 and 31,389,839.21

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Solution

The fourth proportional to 123,505,836.35, 185,257,696.25 and 31,389,839.21 is: 47,084,489.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,505,836.35 : 185,257,696.25 = 31,389,839.21 : x
  2. Step 2: Convert to fraction form
    123,505,836.35/185,257,696.25 = 31,389,839.21/x
  3. Step 3: Cross multiply
    123,505,836.35x = 185,257,696.25 × 31,389,839.21
  4. Step 4: Simplify right side
    123,505,836.35x = 5,815,209,298,244,138
  5. Step 5: Solve for x
    x = 5,815,209,298,244,138/123,505,836.35
  6. Step 6: Final answer
    x = 47,084,489.85

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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.