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Finding the Fourth Proportional to 6,339,171.60, 8,749,617.84 and 3,892,368.96

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Solution

The fourth proportional to 6,339,171.60, 8,749,617.84 and 3,892,368.96 is: 5,372,427.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,339,171.60 : 8,749,617.84 = 3,892,368.96 : x
  2. Step 2: Convert to fraction form
    6,339,171.60/8,749,617.84 = 3,892,368.96/x
  3. Step 3: Cross multiply
    6,339,171.60x = 8,749,617.84 × 3,892,368.96
  4. Step 4: Simplify right side
    6,339,171.60x = 34,056,740,892,278.25
  5. Step 5: Solve for x
    x = 34,056,740,892,278.25/6,339,171.60
  6. Step 6: Final answer
    x = 5,372,427.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.