Home / 12,384,900.80-18,540,026.40-10,891,908.80

Finding the Fourth Proportional to 12,384,900.80, 18,540,026.40 and 10,891,908.80

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Solution

The fourth proportional to 12,384,900.80, 18,540,026.40 and 10,891,908.80 is: 16,305,037.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,384,900.80 : 18,540,026.40 = 10,891,908.80 : x
  2. Step 2: Convert to fraction form
    12,384,900.80/18,540,026.40 = 10,891,908.80/x
  3. Step 3: Cross multiply
    12,384,900.80x = 18,540,026.40 × 10,891,908.80
  4. Step 4: Simplify right side
    12,384,900.80x = 201,936,276,698,392.31
  5. Step 5: Solve for x
    x = 201,936,276,698,392.31/12,384,900.80
  6. Step 6: Final answer
    x = 16,305,037.88

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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.