Home / 252,363,644.70-378,545,467.05-217,726,230.30

Finding the Fourth Proportional to 252,363,644.70, 378,545,467.05 and 217,726,230.30

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Solution

The fourth proportional to 252,363,644.70, 378,545,467.05 and 217,726,230.30 is: 326,589,345.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,363,644.70 : 378,545,467.05 = 217,726,230.30 : x
  2. Step 2: Convert to fraction form
    252,363,644.70/378,545,467.05 = 217,726,230.30/x
  3. Step 3: Cross multiply
    252,363,644.70x = 378,545,467.05 × 217,726,230.30
  4. Step 4: Simplify right side
    252,363,644.70x = 82,419,277,537,949,376
  5. Step 5: Solve for x
    x = 82,419,277,537,949,376/252,363,644.70
  6. Step 6: Final answer
    x = 326,589,345.45

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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.