Home / 129,487,076.20-194,230,614.30-123,515,108.20

Finding the Fourth Proportional to 129,487,076.20, 194,230,614.30 and 123,515,108.20

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Solution

The fourth proportional to 129,487,076.20, 194,230,614.30 and 123,515,108.20 is: 185,272,662.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,487,076.20 : 194,230,614.30 = 123,515,108.20 : x
  2. Step 2: Convert to fraction form
    129,487,076.20/194,230,614.30 = 123,515,108.20/x
  3. Step 3: Cross multiply
    129,487,076.20x = 194,230,614.30 × 123,515,108.20
  4. Step 4: Simplify right side
    129,487,076.20x = 23,990,415,341,016,968
  5. Step 5: Solve for x
    x = 23,990,415,341,016,968/129,487,076.20
  6. Step 6: Final answer
    x = 185,272,662.30

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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.