Home / 129,491,780.20-194,237,670.30-123,519,812.20

Finding the Fourth Proportional to 129,491,780.20, 194,237,670.30 and 123,519,812.20

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Solution

The fourth proportional to 129,491,780.20, 194,237,670.30 and 123,519,812.20 is: 185,279,718.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,491,780.20 : 194,237,670.30 = 123,519,812.20 : x
  2. Step 2: Convert to fraction form
    129,491,780.20/194,237,670.30 = 123,519,812.20/x
  3. Step 3: Cross multiply
    129,491,780.20x = 194,237,670.30 × 123,519,812.20
  4. Step 4: Simplify right side
    129,491,780.20x = 23,992,200,557,621,520
  5. Step 5: Solve for x
    x = 23,992,200,557,621,520/129,491,780.20
  6. Step 6: Final answer
    x = 185,279,718.30

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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.