Home / 21,805,369.29-30,091,611.41-12,016,163.78

Finding the Fourth Proportional to 21,805,369.29, 30,091,611.41 and 12,016,163.78

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Solution

The fourth proportional to 21,805,369.29, 30,091,611.41 and 12,016,163.78 is: 16,582,417.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,805,369.29 : 30,091,611.41 = 12,016,163.78 : x
  2. Step 2: Convert to fraction form
    21,805,369.29/30,091,611.41 = 12,016,163.78/x
  3. Step 3: Cross multiply
    21,805,369.29x = 30,091,611.41 × 12,016,163.78
  4. Step 4: Simplify right side
    21,805,369.29x = 361,585,730,896,137.88
  5. Step 5: Solve for x
    x = 361,585,730,896,137.88/21,805,369.29
  6. Step 6: Final answer
    x = 16,582,417.21

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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.