Home / 18,723,076.60-28,084,614.90-15,531,806.20

Finding the Fourth Proportional to 18,723,076.60, 28,084,614.90 and 15,531,806.20

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Solution

The fourth proportional to 18,723,076.60, 28,084,614.90 and 15,531,806.20 is: 23,297,709.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,723,076.60 : 28,084,614.90 = 15,531,806.20 : x
  2. Step 2: Convert to fraction form
    18,723,076.60/28,084,614.90 = 15,531,806.20/x
  3. Step 3: Cross multiply
    18,723,076.60x = 28,084,614.90 × 15,531,806.20
  4. Step 4: Simplify right side
    18,723,076.60x = 436,204,795,828,432.31
  5. Step 5: Solve for x
    x = 436,204,795,828,432.31/18,723,076.60
  6. Step 6: Final answer
    x = 23,297,709.30

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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.