Home / 12,074,694.80-18,133,037.40-6,405,990.80

Finding the Fourth Proportional to 12,074,694.80, 18,133,037.40 and 6,405,990.80

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Solution

The fourth proportional to 12,074,694.80, 18,133,037.40 and 6,405,990.80 is: 9,620,124.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,074,694.80 : 18,133,037.40 = 6,405,990.80 : x
  2. Step 2: Convert to fraction form
    12,074,694.80/18,133,037.40 = 6,405,990.80/x
  3. Step 3: Cross multiply
    12,074,694.80x = 18,133,037.40 × 6,405,990.80
  4. Step 4: Simplify right side
    12,074,694.80x = 116,160,070,760,455.91
  5. Step 5: Solve for x
    x = 116,160,070,760,455.91/12,074,694.80
  6. Step 6: Final answer
    x = 9,620,124.79

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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.