Home / 12,382,912.80-18,537,044.40-10,889,920.80

Finding the Fourth Proportional to 12,382,912.80, 18,537,044.40 and 10,889,920.80

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Solution

The fourth proportional to 12,382,912.80, 18,537,044.40 and 10,889,920.80 is: 16,302,056.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,382,912.80 : 18,537,044.40 = 10,889,920.80 : x
  2. Step 2: Convert to fraction form
    12,382,912.80/18,537,044.40 = 10,889,920.80/x
  3. Step 3: Cross multiply
    12,382,912.80x = 18,537,044.40 × 10,889,920.80
  4. Step 4: Simplify right side
    12,382,912.80x = 201,866,945,382,083.53
  5. Step 5: Solve for x
    x = 201,866,945,382,083.53/12,382,912.80
  6. Step 6: Final answer
    x = 16,302,056.60

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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.