Home / 8,522,971.42-12,786,346.22-2,457,229.78

Finding the Fourth Proportional to 8,522,971.42, 12,786,346.22 and 2,457,229.78

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Solution

The fourth proportional to 8,522,971.42, 12,786,346.22 and 2,457,229.78 is: 3,686,389.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,522,971.42 : 12,786,346.22 = 2,457,229.78 : x
  2. Step 2: Convert to fraction form
    8,522,971.42/12,786,346.22 = 2,457,229.78/x
  3. Step 3: Cross multiply
    8,522,971.42x = 12,786,346.22 × 2,457,229.78
  4. Step 4: Simplify right side
    8,522,971.42x = 31,418,990,632,956.55
  5. Step 5: Solve for x
    x = 31,418,990,632,956.55/8,522,971.42
  6. Step 6: Final answer
    x = 3,686,389.30

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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.