Home / 12,481,609.70-18,722,414.55-5,291,920.10

Finding the Fourth Proportional to 12,481,609.70, 18,722,414.55 and 5,291,920.10

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Solution

The fourth proportional to 12,481,609.70, 18,722,414.55 and 5,291,920.10 is: 7,937,880.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,481,609.70 : 18,722,414.55 = 5,291,920.10 : x
  2. Step 2: Convert to fraction form
    12,481,609.70/18,722,414.55 = 5,291,920.10/x
  3. Step 3: Cross multiply
    12,481,609.70x = 18,722,414.55 × 5,291,920.10
  4. Step 4: Simplify right side
    12,481,609.70x = 99,077,521,877,677.45
  5. Step 5: Solve for x
    x = 99,077,521,877,677.45/12,481,609.70
  6. Step 6: Final answer
    x = 7,937,880.15

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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.