Home / 12,383,148.10-18,574,722.15-6,643,585.30

Finding the Fourth Proportional to 12,383,148.10, 18,574,722.15 and 6,643,585.30

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Solution

The fourth proportional to 12,383,148.10, 18,574,722.15 and 6,643,585.30 is: 9,965,377.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,383,148.10 : 18,574,722.15 = 6,643,585.30 : x
  2. Step 2: Convert to fraction form
    12,383,148.10/18,574,722.15 = 6,643,585.30/x
  3. Step 3: Cross multiply
    12,383,148.10x = 18,574,722.15 × 6,643,585.30
  4. Step 4: Simplify right side
    12,383,148.10x = 123,402,751,027,324.38
  5. Step 5: Solve for x
    x = 123,402,751,027,324.38/12,383,148.10
  6. Step 6: Final answer
    x = 9,965,377.95

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Double scale
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Similar ratio
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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.