Home / 20,242,340.10-30,354,652.80-8,107,770.60

Finding the Fourth Proportional to 20,242,340.10, 30,354,652.80 and 8,107,770.60

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Solution

The fourth proportional to 20,242,340.10, 30,354,652.80 and 8,107,770.60 is: 12,158,108.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,242,340.10 : 30,354,652.80 = 8,107,770.60 : x
  2. Step 2: Convert to fraction form
    20,242,340.10/30,354,652.80 = 8,107,770.60/x
  3. Step 3: Cross multiply
    20,242,340.10x = 30,354,652.80 × 8,107,770.60
  4. Step 4: Simplify right side
    20,242,340.10x = 246,108,561,545,047.69
  5. Step 5: Solve for x
    x = 246,108,561,545,047.69/20,242,340.10
  6. Step 6: Final answer
    x = 12,158,108.22

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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.