Home / 18,190,156.20-27,285,234.30-10,915,319.40

Finding the Fourth Proportional to 18,190,156.20, 27,285,234.30 and 10,915,319.40

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Solution

The fourth proportional to 18,190,156.20, 27,285,234.30 and 10,915,319.40 is: 16,372,979.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,190,156.20 : 27,285,234.30 = 10,915,319.40 : x
  2. Step 2: Convert to fraction form
    18,190,156.20/27,285,234.30 = 10,915,319.40/x
  3. Step 3: Cross multiply
    18,190,156.20x = 27,285,234.30 × 10,915,319.40
  4. Step 4: Simplify right side
    18,190,156.20x = 297,827,047,288,335.44
  5. Step 5: Solve for x
    x = 297,827,047,288,335.44/18,190,156.20
  6. Step 6: Final answer
    x = 16,372,979.10

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Double scale
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Similar ratio
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1.5x scale

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.