Home / 20,501,440.85-28,292,578.83-11,334,674.09

Finding the Fourth Proportional to 20,501,440.85, 28,292,578.83 and 11,334,674.09

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Solution

The fourth proportional to 20,501,440.85, 28,292,578.83 and 11,334,674.09 is: 15,642,176.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,501,440.85 : 28,292,578.83 = 11,334,674.09 : x
  2. Step 2: Convert to fraction form
    20,501,440.85/28,292,578.83 = 11,334,674.09/x
  3. Step 3: Cross multiply
    20,501,440.85x = 28,292,578.83 × 11,334,674.09
  4. Step 4: Simplify right side
    20,501,440.85x = 320,687,160,019,715.62
  5. Step 5: Solve for x
    x = 320,687,160,019,715.62/20,501,440.85
  6. Step 6: Final answer
    x = 15,642,176.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.