Home / 8,278,561.19-12,416,895.71-2,213,765.78

Finding the Fourth Proportional to 8,278,561.19, 12,416,895.71 and 2,213,765.78

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Solution

The fourth proportional to 8,278,561.19, 12,416,895.71 and 2,213,765.78 is: 3,320,395.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,278,561.19 : 12,416,895.71 = 2,213,765.78 : x
  2. Step 2: Convert to fraction form
    8,278,561.19/12,416,895.71 = 2,213,765.78/x
  3. Step 3: Cross multiply
    8,278,561.19x = 12,416,895.71 × 2,213,765.78
  4. Step 4: Simplify right side
    8,278,561.19x = 27,488,098,751,775.12
  5. Step 5: Solve for x
    x = 27,488,098,751,775.12/8,278,561.19
  6. Step 6: Final answer
    x = 3,320,395.67

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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.