Home / 20,153,021.80-30,233,469.30-8,020,420.60

Finding the Fourth Proportional to 20,153,021.80, 30,233,469.30 and 8,020,420.60

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Solution

The fourth proportional to 20,153,021.80, 30,233,469.30 and 8,020,420.60 is: 12,032,197.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,153,021.80 : 30,233,469.30 = 8,020,420.60 : x
  2. Step 2: Convert to fraction form
    20,153,021.80/30,233,469.30 = 8,020,420.60/x
  3. Step 3: Cross multiply
    20,153,021.80x = 30,233,469.30 × 8,020,420.60
  4. Step 4: Simplify right side
    20,153,021.80x = 242,485,139,983,187.56
  5. Step 5: Solve for x
    x = 242,485,139,983,187.56/20,153,021.80
  6. Step 6: Final answer
    x = 12,032,197.57

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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.