Home / 8,257,890.60-12,386,835.90-5,388,109.20

Finding the Fourth Proportional to 8,257,890.60, 12,386,835.90 and 5,388,109.20

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Solution

The fourth proportional to 8,257,890.60, 12,386,835.90 and 5,388,109.20 is: 8,082,163.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,257,890.60 : 12,386,835.90 = 5,388,109.20 : x
  2. Step 2: Convert to fraction form
    8,257,890.60/12,386,835.90 = 5,388,109.20/x
  3. Step 3: Cross multiply
    8,257,890.60x = 12,386,835.90 × 5,388,109.20
  4. Step 4: Simplify right side
    8,257,890.60x = 66,741,624,471,680.28
  5. Step 5: Solve for x
    x = 66,741,624,471,680.28/8,257,890.60
  6. Step 6: Final answer
    x = 8,082,163.80

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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.