Home / 12,822,450.78-17,694,815.67-7,315,683.42

Finding the Fourth Proportional to 12,822,450.78, 17,694,815.67 and 7,315,683.42

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Solution

The fourth proportional to 12,822,450.78, 17,694,815.67 and 7,315,683.42 is: 10,095,548.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,822,450.78 : 17,694,815.67 = 7,315,683.42 : x
  2. Step 2: Convert to fraction form
    12,822,450.78/17,694,815.67 = 7,315,683.42/x
  3. Step 3: Cross multiply
    12,822,450.78x = 17,694,815.67 × 7,315,683.42
  4. Step 4: Simplify right side
    12,822,450.78x = 129,449,669,616,975.20
  5. Step 5: Solve for x
    x = 129,449,669,616,975.20/12,822,450.78
  6. Step 6: Final answer
    x = 10,095,548.18

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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.