Home / 20,986,663.72-31,489,144.26-7,349,592.82

Finding the Fourth Proportional to 20,986,663.72, 31,489,144.26 and 7,349,592.82

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Solution

The fourth proportional to 20,986,663.72, 31,489,144.26 and 7,349,592.82 is: 11,027,593.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,986,663.72 : 31,489,144.26 = 7,349,592.82 : x
  2. Step 2: Convert to fraction form
    20,986,663.72/31,489,144.26 = 7,349,592.82/x
  3. Step 3: Cross multiply
    20,986,663.72x = 31,489,144.26 × 7,349,592.82
  4. Step 4: Simplify right side
    20,986,663.72x = 231,432,388,561,240.25
  5. Step 5: Solve for x
    x = 231,432,388,561,240.25/20,986,663.72
  6. Step 6: Final answer
    x = 11,027,593.13

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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.