Home / 21,379,208.72-29,496,371.74-12,085,880.27

Finding the Fourth Proportional to 21,379,208.72, 29,496,371.74 and 12,085,880.27

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Solution

The fourth proportional to 21,379,208.72, 29,496,371.74 and 12,085,880.27 is: 16,674,593.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,379,208.72 : 29,496,371.74 = 12,085,880.27 : x
  2. Step 2: Convert to fraction form
    21,379,208.72/29,496,371.74 = 12,085,880.27/x
  3. Step 3: Cross multiply
    21,379,208.72x = 29,496,371.74 × 12,085,880.27
  4. Step 4: Simplify right side
    21,379,208.72x = 356,489,617,071,355.06
  5. Step 5: Solve for x
    x = 356,489,617,071,355.06/21,379,208.72
  6. Step 6: Final answer
    x = 16,674,593.61

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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.