Home / 12,285,719.10-18,428,578.65-8,244,143.10

Finding the Fourth Proportional to 12,285,719.10, 18,428,578.65 and 8,244,143.10

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Solution

The fourth proportional to 12,285,719.10, 18,428,578.65 and 8,244,143.10 is: 12,366,214.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,285,719.10 : 18,428,578.65 = 8,244,143.10 : x
  2. Step 2: Convert to fraction form
    12,285,719.10/18,428,578.65 = 8,244,143.10/x
  3. Step 3: Cross multiply
    12,285,719.10x = 18,428,578.65 × 8,244,143.10
  4. Step 4: Simplify right side
    12,285,719.10x = 151,927,839,520,204.78
  5. Step 5: Solve for x
    x = 151,927,839,520,204.78/12,285,719.10
  6. Step 6: Final answer
    x = 12,366,214.65

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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.