Home / 12,143,426.45-18,215,217.93-4,857,494.87

Finding the Fourth Proportional to 12,143,426.45, 18,215,217.93 and 4,857,494.87

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Solution

The fourth proportional to 12,143,426.45, 18,215,217.93 and 4,857,494.87 is: 7,286,273.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,143,426.45 : 18,215,217.93 = 4,857,494.87 : x
  2. Step 2: Convert to fraction form
    12,143,426.45/18,215,217.93 = 4,857,494.87/x
  3. Step 3: Cross multiply
    12,143,426.45x = 18,215,217.93 × 4,857,494.87
  4. Step 4: Simplify right side
    12,143,426.45x = 88,480,327,714,660.66
  5. Step 5: Solve for x
    x = 88,480,327,714,660.66/12,143,426.45
  6. Step 6: Final answer
    x = 7,286,273.62

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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.