Home / 20,542,194.69-28,347,881.49-11,374,640.61

Finding the Fourth Proportional to 20,542,194.69, 28,347,881.49 and 11,374,640.61

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Solution

The fourth proportional to 20,542,194.69, 28,347,881.49 and 11,374,640.61 is: 15,696,811.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,542,194.69 : 28,347,881.49 = 11,374,640.61 : x
  2. Step 2: Convert to fraction form
    20,542,194.69/28,347,881.49 = 11,374,640.61/x
  3. Step 3: Cross multiply
    20,542,194.69x = 28,347,881.49 × 11,374,640.61
  4. Step 4: Simplify right side
    20,542,194.69x = 322,446,964,003,621.25
  5. Step 5: Solve for x
    x = 322,446,964,003,621.25/20,542,194.69
  6. Step 6: Final answer
    x = 15,696,811.80

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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.