Home / 20,986,668.72-31,489,151.76-7,349,597.82

Finding the Fourth Proportional to 20,986,668.72, 31,489,151.76 and 7,349,597.82

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Solution

The fourth proportional to 20,986,668.72, 31,489,151.76 and 7,349,597.82 is: 11,027,600.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,986,668.72 : 31,489,151.76 = 7,349,597.82 : x
  2. Step 2: Convert to fraction form
    20,986,668.72/31,489,151.76 = 7,349,597.82/x
  3. Step 3: Cross multiply
    20,986,668.72x = 31,489,151.76 × 7,349,597.82
  4. Step 4: Simplify right side
    20,986,668.72x = 231,432,601,128,945.19
  5. Step 5: Solve for x
    x = 231,432,601,128,945.19/20,986,668.72
  6. Step 6: Final answer
    x = 11,027,600.63

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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.