Home / 20,439,131.80-30,621,372.90-16,632,002.20

Finding the Fourth Proportional to 20,439,131.80, 30,621,372.90 and 16,632,002.20

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Solution

The fourth proportional to 20,439,131.80, 30,621,372.90 and 16,632,002.20 is: 24,917,630.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,439,131.80 : 30,621,372.90 = 16,632,002.20 : x
  2. Step 2: Convert to fraction form
    20,439,131.80/30,621,372.90 = 16,632,002.20/x
  3. Step 3: Cross multiply
    20,439,131.80x = 30,621,372.90 × 16,632,002.20
  4. Step 4: Simplify right side
    20,439,131.80x = 509,294,741,439,820.31
  5. Step 5: Solve for x
    x = 509,294,741,439,820.31/20,439,131.80
  6. Step 6: Final answer
    x = 24,917,630.87

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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.