Home / 7,158,815.52-9,879,167-3,939,551.52

Finding the Fourth Proportional to 7,158,815.52, 9,879,167 and 3,939,551.52

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Solution

The fourth proportional to 7,158,815.52, 9,879,167 and 3,939,551.52 is: 5,436,581.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,158,815.52 : 9,879,167 = 3,939,551.52 : x
  2. Step 2: Convert to fraction form
    7,158,815.52/9,879,167 = 3,939,551.52/x
  3. Step 3: Cross multiply
    7,158,815.52x = 9,879,167 × 3,939,551.52
  4. Step 4: Simplify right side
    7,158,815.52x = 38,919,487,371,183.84
  5. Step 5: Solve for x
    x = 38,919,487,371,183.84/7,158,815.52
  6. Step 6: Final answer
    x = 5,436,581.97

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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.