Home / 18,693,768.80-28,043,277.60-5,912,940.80

Finding the Fourth Proportional to 18,693,768.80, 28,043,277.60 and 5,912,940.80

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Solution

The fourth proportional to 18,693,768.80, 28,043,277.60 and 5,912,940.80 is: 8,870,241.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,693,768.80 : 28,043,277.60 = 5,912,940.80 : x
  2. Step 2: Convert to fraction form
    18,693,768.80/28,043,277.60 = 5,912,940.80/x
  3. Step 3: Cross multiply
    18,693,768.80x = 28,043,277.60 × 5,912,940.80
  4. Step 4: Simplify right side
    18,693,768.80x = 165,818,240,286,766.09
  5. Step 5: Solve for x
    x = 165,818,240,286,766.09/18,693,768.80
  6. Step 6: Final answer
    x = 8,870,241.31

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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.