Home / 12,243,880.68-18,340,523.10-7,179,942.12

Finding the Fourth Proportional to 12,243,880.68, 18,340,523.10 and 7,179,942.12

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Solution

The fourth proportional to 12,243,880.68, 18,340,523.10 and 7,179,942.12 is: 10,755,078.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,243,880.68 : 18,340,523.10 = 7,179,942.12 : x
  2. Step 2: Convert to fraction form
    12,243,880.68/18,340,523.10 = 7,179,942.12/x
  3. Step 3: Cross multiply
    12,243,880.68x = 18,340,523.10 × 7,179,942.12
  4. Step 4: Simplify right side
    12,243,880.68x = 131,683,894,308,522.98
  5. Step 5: Solve for x
    x = 131,683,894,308,522.98/12,243,880.68
  6. Step 6: Final answer
    x = 10,755,078.21

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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.