Home / 1,200,511,204.24-1,800,857,626.31-371,548,689.87

Finding the Fourth Proportional to 1,200,511,204.24, 1,800,857,626.31 and 371,548,689.87

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Solution

The fourth proportional to 1,200,511,204.24, 1,800,857,626.31 and 371,548,689.87 is: 557,351,142.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,200,511,204.24 : 1,800,857,626.31 = 371,548,689.87 : x
  2. Step 2: Convert to fraction form
    1,200,511,204.24/1,800,857,626.31 = 371,548,689.87/x
  3. Step 3: Cross multiply
    1,200,511,204.24x = 1,800,857,626.31 × 371,548,689.87
  4. Step 4: Simplify right side
    1,200,511,204.24x = 669,106,291,697,878,528
  5. Step 5: Solve for x
    x = 669,106,291,697,878,528/1,200,511,204.24
  6. Step 6: Final answer
    x = 557,351,142.86

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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.