Home / 12,479,407.56-17,221,696.40-7,322,855.04

Finding the Fourth Proportional to 12,479,407.56, 17,221,696.40 and 7,322,855.04

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Solution

The fourth proportional to 12,479,407.56, 17,221,696.40 and 7,322,855.04 is: 10,105,606.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,479,407.56 : 17,221,696.40 = 7,322,855.04 : x
  2. Step 2: Convert to fraction form
    12,479,407.56/17,221,696.40 = 7,322,855.04/x
  3. Step 3: Cross multiply
    12,479,407.56x = 17,221,696.40 × 7,322,855.04
  4. Step 4: Simplify right side
    12,479,407.56x = 126,111,986,280,089.84
  5. Step 5: Solve for x
    x = 126,111,986,280,089.84/12,479,407.56
  6. Step 6: Final answer
    x = 10,105,606.83

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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.