Home / 6,388,539.92-8,816,138.99-3,487,930.78

Finding the Fourth Proportional to 6,388,539.92, 8,816,138.99 and 3,487,930.78

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Solution

The fourth proportional to 6,388,539.92, 8,816,138.99 and 3,487,930.78 is: 4,813,319.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,388,539.92 : 8,816,138.99 = 3,487,930.78 : x
  2. Step 2: Convert to fraction form
    6,388,539.92/8,816,138.99 = 3,487,930.78/x
  3. Step 3: Cross multiply
    6,388,539.92x = 8,816,138.99 × 3,487,930.78
  4. Step 4: Simplify right side
    6,388,539.92x = 30,750,082,534,109.11
  5. Step 5: Solve for x
    x = 30,750,082,534,109.11/6,388,539.92
  6. Step 6: Final answer
    x = 4,813,319.31

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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.