Home / 20,407,436.12-28,162,290.60-11,115,042.56

Finding the Fourth Proportional to 20,407,436.12, 28,162,290.60 and 11,115,042.56

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Solution

The fourth proportional to 20,407,436.12, 28,162,290.60 and 11,115,042.56 is: 15,338,774.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,407,436.12 : 28,162,290.60 = 11,115,042.56 : x
  2. Step 2: Convert to fraction form
    20,407,436.12/28,162,290.60 = 11,115,042.56/x
  3. Step 3: Cross multiply
    20,407,436.12x = 28,162,290.60 × 11,115,042.56
  4. Step 4: Simplify right side
    20,407,436.12x = 313,025,058,606,087.94
  5. Step 5: Solve for x
    x = 313,025,058,606,087.94/20,407,436.12
  6. Step 6: Final answer
    x = 15,338,774.39

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1.5x scale

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.