Home / 21,081,469.32-29,080,742.76-12,259,954.80

Finding the Fourth Proportional to 21,081,469.32, 29,080,742.76 and 12,259,954.80

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Solution

The fourth proportional to 21,081,469.32, 29,080,742.76 and 12,259,954.80 is: 16,911,942.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,081,469.32 : 29,080,742.76 = 12,259,954.80 : x
  2. Step 2: Convert to fraction form
    21,081,469.32/29,080,742.76 = 12,259,954.80/x
  3. Step 3: Cross multiply
    21,081,469.32x = 29,080,742.76 × 12,259,954.80
  4. Step 4: Simplify right side
    21,081,469.32x = 356,528,591,788,027.31
  5. Step 5: Solve for x
    x = 356,528,591,788,027.31/21,081,469.32
  6. Step 6: Final answer
    x = 16,911,942.25

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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.