Home / 20,617,653.52-28,450,667.88-11,324,743.32

Finding the Fourth Proportional to 20,617,653.52, 28,450,667.88 and 11,324,743.32

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Solution

The fourth proportional to 20,617,653.52, 28,450,667.88 and 11,324,743.32 is: 15,627,215.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,617,653.52 : 28,450,667.88 = 11,324,743.32 : x
  2. Step 2: Convert to fraction form
    20,617,653.52/28,450,667.88 = 11,324,743.32/x
  3. Step 3: Cross multiply
    20,617,653.52x = 28,450,667.88 × 11,324,743.32
  4. Step 4: Simplify right side
    20,617,653.52x = 322,196,511,023,568.56
  5. Step 5: Solve for x
    x = 322,196,511,023,568.56/20,617,653.52
  6. Step 6: Final answer
    x = 15,627,215.32

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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.