Home / 54,441,631.20-81,662,446.80-20,361,172.80

Finding the Fourth Proportional to 54,441,631.20, 81,662,446.80 and 20,361,172.80

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Solution

The fourth proportional to 54,441,631.20, 81,662,446.80 and 20,361,172.80 is: 30,541,759.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,441,631.20 : 81,662,446.80 = 20,361,172.80 : x
  2. Step 2: Convert to fraction form
    54,441,631.20/81,662,446.80 = 20,361,172.80/x
  3. Step 3: Cross multiply
    54,441,631.20x = 81,662,446.80 × 20,361,172.80
  4. Step 4: Simplify right side
    54,441,631.20x = 1,662,743,190,565,607
  5. Step 5: Solve for x
    x = 1,662,743,190,565,607/54,441,631.20
  6. Step 6: Final answer
    x = 30,541,759.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.