Home / 20,396,315.80-30,523,614.90-18,695,704.60

Finding the Fourth Proportional to 20,396,315.80, 30,523,614.90 and 18,695,704.60

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Solution

The fourth proportional to 20,396,315.80, 30,523,614.90 and 18,695,704.60 is: 27,978,606.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,396,315.80 : 30,523,614.90 = 18,695,704.60 : x
  2. Step 2: Convert to fraction form
    20,396,315.80/30,523,614.90 = 18,695,704.60/x
  3. Step 3: Cross multiply
    20,396,315.80x = 30,523,614.90 × 18,695,704.60
  4. Step 4: Simplify right side
    20,396,315.80x = 570,660,487,494,558.50
  5. Step 5: Solve for x
    x = 570,660,487,494,558.50/20,396,315.80
  6. Step 6: Final answer
    x = 27,978,606.19

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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.