Home / 20,986,664.72-31,489,145.76-7,349,593.82

Finding the Fourth Proportional to 20,986,664.72, 31,489,145.76 and 7,349,593.82

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Solution

The fourth proportional to 20,986,664.72, 31,489,145.76 and 7,349,593.82 is: 11,027,594.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,986,664.72 : 31,489,145.76 = 7,349,593.82 : x
  2. Step 2: Convert to fraction form
    20,986,664.72/31,489,145.76 = 7,349,593.82/x
  3. Step 3: Cross multiply
    20,986,664.72x = 31,489,145.76 × 7,349,593.82
  4. Step 4: Simplify right side
    20,986,664.72x = 231,432,431,074,775.22
  5. Step 5: Solve for x
    x = 231,432,431,074,775.22/20,986,664.72
  6. Step 6: Final answer
    x = 11,027,594.63

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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.