Home / 12,455,668.89-17,188,833.78-6,949,044.81

Finding the Fourth Proportional to 12,455,668.89, 17,188,833.78 and 6,949,044.81

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Solution

The fourth proportional to 12,455,668.89, 17,188,833.78 and 6,949,044.81 is: 9,589,687.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,455,668.89 : 17,188,833.78 = 6,949,044.81 : x
  2. Step 2: Convert to fraction form
    12,455,668.89/17,188,833.78 = 6,949,044.81/x
  3. Step 3: Cross multiply
    12,455,668.89x = 17,188,833.78 × 6,949,044.81
  4. Step 4: Simplify right side
    12,455,668.89x = 119,445,976,168,861.69
  5. Step 5: Solve for x
    x = 119,445,976,168,861.69/12,455,668.89
  6. Step 6: Final answer
    x = 9,589,687.81

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1.5x scale

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.