Home / 19,979,680.20-29,969,520.30-7,200,601.80

Finding the Fourth Proportional to 19,979,680.20, 29,969,520.30 and 7,200,601.80

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Solution

The fourth proportional to 19,979,680.20, 29,969,520.30 and 7,200,601.80 is: 10,800,902.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,979,680.20 : 29,969,520.30 = 7,200,601.80 : x
  2. Step 2: Convert to fraction form
    19,979,680.20/29,969,520.30 = 7,200,601.80/x
  3. Step 3: Cross multiply
    19,979,680.20x = 29,969,520.30 × 7,200,601.80
  4. Step 4: Simplify right side
    19,979,680.20x = 215,798,581,817,316.53
  5. Step 5: Solve for x
    x = 215,798,581,817,316.53/19,979,680.20
  6. Step 6: Final answer
    x = 10,800,902.70

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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.