Home / 20,616,718.16-28,451,456.52-11,450,219.60

Finding the Fourth Proportional to 20,616,718.16, 28,451,456.52 and 11,450,219.60

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Solution

The fourth proportional to 20,616,718.16, 28,451,456.52 and 11,450,219.60 is: 15,801,517.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,616,718.16 : 28,451,456.52 = 11,450,219.60 : x
  2. Step 2: Convert to fraction form
    20,616,718.16/28,451,456.52 = 11,450,219.60/x
  3. Step 3: Cross multiply
    20,616,718.16x = 28,451,456.52 × 11,450,219.60
  4. Step 4: Simplify right side
    20,616,718.16x = 325,775,425,093,851.75
  5. Step 5: Solve for x
    x = 325,775,425,093,851.75/20,616,718.16
  6. Step 6: Final answer
    x = 15,801,517.13

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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.