Home / 15,065,793.65-20,789,912.36-8,190,215.57

Finding the Fourth Proportional to 15,065,793.65, 20,789,912.36 and 8,190,215.57

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Solution

The fourth proportional to 15,065,793.65, 20,789,912.36 and 8,190,215.57 is: 11,302,017.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,065,793.65 : 20,789,912.36 = 8,190,215.57 : x
  2. Step 2: Convert to fraction form
    15,065,793.65/20,789,912.36 = 8,190,215.57/x
  3. Step 3: Cross multiply
    15,065,793.65x = 20,789,912.36 × 8,190,215.57
  4. Step 4: Simplify right side
    15,065,793.65x = 170,273,863,764,906.81
  5. Step 5: Solve for x
    x = 170,273,863,764,906.81/15,065,793.65
  6. Step 6: Final answer
    x = 11,302,017.52

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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.