Home / 12,170,145.70-16,794,281.17-6,663,420.64

Finding the Fourth Proportional to 12,170,145.70, 16,794,281.17 and 6,663,420.64

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Solution

The fourth proportional to 12,170,145.70, 16,794,281.17 and 6,663,420.64 is: 9,195,235.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,170,145.70 : 16,794,281.17 = 6,663,420.64 : x
  2. Step 2: Convert to fraction form
    12,170,145.70/16,794,281.17 = 6,663,420.64/x
  3. Step 3: Cross multiply
    12,170,145.70x = 16,794,281.17 × 6,663,420.64
  4. Step 4: Simplify right side
    12,170,145.70x = 111,907,359,782,141.36
  5. Step 5: Solve for x
    x = 111,907,359,782,141.36/12,170,145.70
  6. Step 6: Final answer
    x = 9,195,235.83

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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.