Home / 7,928,715.20-11,893,072.80-5,537,230.70

Finding the Fourth Proportional to 7,928,715.20, 11,893,072.80 and 5,537,230.70

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Solution

The fourth proportional to 7,928,715.20, 11,893,072.80 and 5,537,230.70 is: 8,305,846.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,928,715.20 : 11,893,072.80 = 5,537,230.70 : x
  2. Step 2: Convert to fraction form
    7,928,715.20/11,893,072.80 = 5,537,230.70/x
  3. Step 3: Cross multiply
    7,928,715.20x = 11,893,072.80 × 5,537,230.70
  4. Step 4: Simplify right side
    7,928,715.20x = 65,854,687,825,494.97
  5. Step 5: Solve for x
    x = 65,854,687,825,494.97/7,928,715.20
  6. Step 6: Final answer
    x = 8,305,846.05

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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.