Home / 12,455,765.87-17,188,967.60-6,949,141.58

Finding the Fourth Proportional to 12,455,765.87, 17,188,967.60 and 6,949,141.58

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Solution

The fourth proportional to 12,455,765.87, 17,188,967.60 and 6,949,141.58 is: 9,589,821.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,455,765.87 : 17,188,967.60 = 6,949,141.58 : x
  2. Step 2: Convert to fraction form
    12,455,765.87/17,188,967.60 = 6,949,141.58/x
  3. Step 3: Cross multiply
    12,455,765.87x = 17,188,967.60 × 6,949,141.58
  4. Step 4: Simplify right side
    12,455,765.87x = 119,448,569,345,742.25
  5. Step 5: Solve for x
    x = 119,448,569,345,742.25/12,455,765.87
  6. Step 6: Final answer
    x = 9,589,821.34

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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.