Home / 21,796,728.75-30,080,418.80-12,138,936.75

Finding the Fourth Proportional to 21,796,728.75, 30,080,418.80 and 12,138,936.75

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Solution

The fourth proportional to 21,796,728.75, 30,080,418.80 and 12,138,936.75 is: 16,752,252.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,796,728.75 : 30,080,418.80 = 12,138,936.75 : x
  2. Step 2: Convert to fraction form
    21,796,728.75/30,080,418.80 = 12,138,936.75/x
  3. Step 3: Cross multiply
    21,796,728.75x = 30,080,418.80 × 12,138,936.75
  4. Step 4: Simplify right side
    21,796,728.75x = 365,144,301,166,016.25
  5. Step 5: Solve for x
    x = 365,144,301,166,016.25/21,796,728.75
  6. Step 6: Final answer
    x = 16,752,252.38

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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.