Home / 862,073,276.26-1,293,121,111.82-287,644,604.26

Finding the Fourth Proportional to 862,073,276.26, 1,293,121,111.82 and 287,644,604.26

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Solution

The fourth proportional to 862,073,276.26, 1,293,121,111.82 and 287,644,604.26 is: 431,470,642.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,073,276.26 : 1,293,121,111.82 = 287,644,604.26 : x
  2. Step 2: Convert to fraction form
    862,073,276.26/1,293,121,111.82 = 287,644,604.26/x
  3. Step 3: Cross multiply
    862,073,276.26x = 1,293,121,111.82 × 287,644,604.26
  4. Step 4: Simplify right side
    862,073,276.26x = 371,959,310,469,715,072
  5. Step 5: Solve for x
    x = 371,959,310,469,715,072/862,073,276.26
  6. Step 6: Final answer
    x = 431,470,642.59

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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.