Home / 12,269,321.52-16,931,730.96-7,115,738.64

Finding the Fourth Proportional to 12,269,321.52, 16,931,730.96 and 7,115,738.64

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Solution

The fourth proportional to 12,269,321.52, 16,931,730.96 and 7,115,738.64 is: 9,819,758.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,269,321.52 : 16,931,730.96 = 7,115,738.64 : x
  2. Step 2: Convert to fraction form
    12,269,321.52/16,931,730.96 = 7,115,738.64/x
  3. Step 3: Cross multiply
    12,269,321.52x = 16,931,730.96 × 7,115,738.64
  4. Step 4: Simplify right side
    12,269,321.52x = 120,481,772,234,156.30
  5. Step 5: Solve for x
    x = 120,481,772,234,156.30/12,269,321.52
  6. Step 6: Final answer
    x = 9,819,758.33

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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.