Home / 15,339,195.38-21,168,532.69-8,464,120.18

Finding the Fourth Proportional to 15,339,195.38, 21,168,532.69 and 8,464,120.18

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Solution

The fourth proportional to 15,339,195.38, 21,168,532.69 and 8,464,120.18 is: 11,680,730.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,339,195.38 : 21,168,532.69 = 8,464,120.18 : x
  2. Step 2: Convert to fraction form
    15,339,195.38/21,168,532.69 = 8,464,120.18/x
  3. Step 3: Cross multiply
    15,339,195.38x = 21,168,532.69 × 8,464,120.18
  4. Step 4: Simplify right side
    15,339,195.38x = 179,173,004,722,418.69
  5. Step 5: Solve for x
    x = 179,173,004,722,418.69/15,339,195.38
  6. Step 6: Final answer
    x = 11,680,730.33

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.