Home / 20,212,324.60-30,318,486.90-7,431,168.55

Finding the Fourth Proportional to 20,212,324.60, 30,318,486.90 and 7,431,168.55

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Solution

The fourth proportional to 20,212,324.60, 30,318,486.90 and 7,431,168.55 is: 11,146,752.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,212,324.60 : 30,318,486.90 = 7,431,168.55 : x
  2. Step 2: Convert to fraction form
    20,212,324.60/30,318,486.90 = 7,431,168.55/x
  3. Step 3: Cross multiply
    20,212,324.60x = 30,318,486.90 × 7,431,168.55
  4. Step 4: Simplify right side
    20,212,324.60x = 225,301,786,334,866.97
  5. Step 5: Solve for x
    x = 225,301,786,334,866.97/20,212,324.60
  6. Step 6: Final answer
    x = 11,146,752.83

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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.