Home / 12,481,946.70-18,722,920.05-10,214,465.10

Finding the Fourth Proportional to 12,481,946.70, 18,722,920.05 and 10,214,465.10

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Solution

The fourth proportional to 12,481,946.70, 18,722,920.05 and 10,214,465.10 is: 15,321,697.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,481,946.70 : 18,722,920.05 = 10,214,465.10 : x
  2. Step 2: Convert to fraction form
    12,481,946.70/18,722,920.05 = 10,214,465.10/x
  3. Step 3: Cross multiply
    12,481,946.70x = 18,722,920.05 × 10,214,465.10
  4. Step 4: Simplify right side
    12,481,946.70x = 191,244,613,420,815.25
  5. Step 5: Solve for x
    x = 191,244,613,420,815.25/12,481,946.70
  6. Step 6: Final answer
    x = 15,321,697.65

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Double scale
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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.