Home / 376,082,329.35-518,994,614.97-208,818,901.77

Finding the Fourth Proportional to 376,082,329.35, 518,994,614.97 and 208,818,901.77

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Solution

The fourth proportional to 376,082,329.35, 518,994,614.97 and 208,818,901.77 is: 288,170,639.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,082,329.35 : 518,994,614.97 = 208,818,901.77 : x
  2. Step 2: Convert to fraction form
    376,082,329.35/518,994,614.97 = 208,818,901.77/x
  3. Step 3: Cross multiply
    376,082,329.35x = 518,994,614.97 × 208,818,901.77
  4. Step 4: Simplify right side
    376,082,329.35x = 108,375,885,522,579,408
  5. Step 5: Solve for x
    x = 108,375,885,522,579,408/376,082,329.35
  6. Step 6: Final answer
    x = 288,170,639.95

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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.