Home / 21,090,761.26-31,629,665.16-7,440,715.44

Finding the Fourth Proportional to 21,090,761.26, 31,629,665.16 and 7,440,715.44

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Solution

The fourth proportional to 21,090,761.26, 31,629,665.16 and 7,440,715.44 is: 11,158,788.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,090,761.26 : 31,629,665.16 = 7,440,715.44 : x
  2. Step 2: Convert to fraction form
    21,090,761.26/31,629,665.16 = 7,440,715.44/x
  3. Step 3: Cross multiply
    21,090,761.26x = 31,629,665.16 × 7,440,715.44
  4. Step 4: Simplify right side
    21,090,761.26x = 235,347,337,918,042.09
  5. Step 5: Solve for x
    x = 235,347,337,918,042.09/21,090,761.26
  6. Step 6: Final answer
    x = 11,158,788.20

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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.