Home / 18,775,025.80-28,120,548.30-15,415,793.80

Finding the Fourth Proportional to 18,775,025.80, 28,120,548.30 and 15,415,793.80

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Solution

The fourth proportional to 18,775,025.80, 28,120,548.30 and 15,415,793.80 is: 23,089,213.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,775,025.80 : 28,120,548.30 = 15,415,793.80 : x
  2. Step 2: Convert to fraction form
    18,775,025.80/28,120,548.30 = 15,415,793.80/x
  3. Step 3: Cross multiply
    18,775,025.80x = 28,120,548.30 × 15,415,793.80
  4. Step 4: Simplify right side
    18,775,025.80x = 433,500,574,135,740.56
  5. Step 5: Solve for x
    x = 433,500,574,135,740.56/18,775,025.80
  6. Step 6: Final answer
    x = 23,089,213.23

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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.