Home / 1,200,511,172.63-1,800,857,578.90-371,548,658.26

Finding the Fourth Proportional to 1,200,511,172.63, 1,800,857,578.90 and 371,548,658.26

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Solution

The fourth proportional to 1,200,511,172.63, 1,800,857,578.90 and 371,548,658.26 is: 557,351,095.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,200,511,172.63 : 1,800,857,578.90 = 371,548,658.26 : x
  2. Step 2: Convert to fraction form
    1,200,511,172.63/1,800,857,578.90 = 371,548,658.26/x
  3. Step 3: Cross multiply
    1,200,511,172.63x = 1,800,857,578.90 × 371,548,658.26
  4. Step 4: Simplify right side
    1,200,511,172.63x = 669,106,217,157,647,104
  5. Step 5: Solve for x
    x = 669,106,217,157,647,104/1,200,511,172.63
  6. Step 6: Final answer
    x = 557,351,095.44

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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.