Home / 20,037,579.71-27,649,527.18-11,217,513.96

Finding the Fourth Proportional to 20,037,579.71, 27,649,527.18 and 11,217,513.96

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Solution

The fourth proportional to 20,037,579.71, 27,649,527.18 and 11,217,513.96 is: 15,478,863.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,037,579.71 : 27,649,527.18 = 11,217,513.96 : x
  2. Step 2: Convert to fraction form
    20,037,579.71/27,649,527.18 = 11,217,513.96/x
  3. Step 3: Cross multiply
    20,037,579.71x = 27,649,527.18 × 11,217,513.96
  4. Step 4: Simplify right side
    20,037,579.71x = 310,158,957,129,049.44
  5. Step 5: Solve for x
    x = 310,158,957,129,049.44/20,037,579.71
  6. Step 6: Final answer
    x = 15,478,863.30

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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.