Home / 21,622,728.41-29,839,345.78-12,205,502.06

Finding the Fourth Proportional to 21,622,728.41, 29,839,345.78 and 12,205,502.06

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Solution

The fourth proportional to 21,622,728.41, 29,839,345.78 and 12,205,502.06 is: 16,843,581.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,622,728.41 : 29,839,345.78 = 12,205,502.06 : x
  2. Step 2: Convert to fraction form
    21,622,728.41/29,839,345.78 = 12,205,502.06/x
  3. Step 3: Cross multiply
    21,622,728.41x = 29,839,345.78 × 12,205,502.06
  4. Step 4: Simplify right side
    21,622,728.41x = 364,204,196,338,706.38
  5. Step 5: Solve for x
    x = 364,204,196,338,706.38/21,622,728.41
  6. Step 6: Final answer
    x = 16,843,581.87

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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.