Home / 20,593,716.09-30,892,389.74-7,640,016.81

Finding the Fourth Proportional to 20,593,716.09, 30,892,389.74 and 7,640,016.81

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Solution

The fourth proportional to 20,593,716.09, 30,892,389.74 and 7,640,016.81 is: 11,460,698.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,593,716.09 : 30,892,389.74 = 7,640,016.81 : x
  2. Step 2: Convert to fraction form
    20,593,716.09/30,892,389.74 = 7,640,016.81/x
  3. Step 3: Cross multiply
    20,593,716.09x = 30,892,389.74 × 7,640,016.81
  4. Step 4: Simplify right side
    20,593,716.09x = 236,018,376,876,471.44
  5. Step 5: Solve for x
    x = 236,018,376,876,471.44/20,593,716.09
  6. Step 6: Final answer
    x = 11,460,698.78

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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.