Home / 5,427,855.40-8,138,672.70-1,640,770.60

Finding the Fourth Proportional to 5,427,855.40, 8,138,672.70 and 1,640,770.60

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Solution

The fourth proportional to 5,427,855.40, 8,138,672.70 and 1,640,770.60 is: 2,460,215.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,427,855.40 : 8,138,672.70 = 1,640,770.60 : x
  2. Step 2: Convert to fraction form
    5,427,855.40/8,138,672.70 = 1,640,770.60/x
  3. Step 3: Cross multiply
    5,427,855.40x = 8,138,672.70 × 1,640,770.60
  4. Step 4: Simplify right side
    5,427,855.40x = 13,353,694,889,182.62
  5. Step 5: Solve for x
    x = 13,353,694,889,182.62/5,427,855.40
  6. Step 6: Final answer
    x = 2,460,215.67

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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.