Home / 21,576,886.21-29,776,541.91-11,787,964.43

Finding the Fourth Proportional to 21,576,886.21, 29,776,541.91 and 11,787,964.43

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Solution

The fourth proportional to 21,576,886.21, 29,776,541.91 and 11,787,964.43 is: 16,267,630.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,576,886.21 : 29,776,541.91 = 11,787,964.43 : x
  2. Step 2: Convert to fraction form
    21,576,886.21/29,776,541.91 = 11,787,964.43/x
  3. Step 3: Cross multiply
    21,576,886.21x = 29,776,541.91 × 11,787,964.43
  4. Step 4: Simplify right side
    21,576,886.21x = 351,004,816,756,704
  5. Step 5: Solve for x
    x = 351,004,816,756,704/21,576,886.21
  6. Step 6: Final answer
    x = 16,267,630.71

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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.