Home / 18,691,982.92-28,037,748.72-4,857,716.20

Finding the Fourth Proportional to 18,691,982.92, 28,037,748.72 and 4,857,716.20

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Solution

The fourth proportional to 18,691,982.92, 28,037,748.72 and 4,857,716.20 is: 7,286,515.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,691,982.92 : 28,037,748.72 = 4,857,716.20 : x
  2. Step 2: Convert to fraction form
    18,691,982.92/28,037,748.72 = 4,857,716.20/x
  3. Step 3: Cross multiply
    18,691,982.92x = 28,037,748.72 × 4,857,716.20
  4. Step 4: Simplify right side
    18,691,982.92x = 136,199,426,168,673.27
  5. Step 5: Solve for x
    x = 136,199,426,168,673.27/18,691,982.92
  6. Step 6: Final answer
    x = 7,286,515.65

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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.