Home / 20,478,885.52-28,260,958.24-11,186,584.28

Finding the Fourth Proportional to 20,478,885.52, 28,260,958.24 and 11,186,584.28

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Solution

The fourth proportional to 20,478,885.52, 28,260,958.24 and 11,186,584.28 is: 15,437,538.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,478,885.52 : 28,260,958.24 = 11,186,584.28 : x
  2. Step 2: Convert to fraction form
    20,478,885.52/28,260,958.24 = 11,186,584.28/x
  3. Step 3: Cross multiply
    20,478,885.52x = 28,260,958.24 × 11,186,584.28
  4. Step 4: Simplify right side
    20,478,885.52x = 316,143,591,195,434.19
  5. Step 5: Solve for x
    x = 316,143,591,195,434.19/20,478,885.52
  6. Step 6: Final answer
    x = 15,437,538.87

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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.