Home / 377,421,198.91-520,836,288.19-207,872,180.86

Finding the Fourth Proportional to 377,421,198.91, 520,836,288.19 and 207,872,180.86

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Solution

The fourth proportional to 377,421,198.91, 520,836,288.19 and 207,872,180.86 is: 286,860,874.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,421,198.91 : 520,836,288.19 = 207,872,180.86 : x
  2. Step 2: Convert to fraction form
    377,421,198.91/520,836,288.19 = 207,872,180.86/x
  3. Step 3: Cross multiply
    377,421,198.91x = 520,836,288.19 × 207,872,180.86
  4. Step 4: Simplify right side
    377,421,198.91x = 108,267,375,097,082,768
  5. Step 5: Solve for x
    x = 108,267,375,097,082,768/377,421,198.91
  6. Step 6: Final answer
    x = 286,860,874.30

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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.