Home / 386,731,850.91-533,690,011.83-210,521,183.99

Finding the Fourth Proportional to 386,731,850.91, 533,690,011.83 and 210,521,183.99

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Solution

The fourth proportional to 386,731,850.91, 533,690,011.83 and 210,521,183.99 is: 290,519,265.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,731,850.91 : 533,690,011.83 = 210,521,183.99 : x
  2. Step 2: Convert to fraction form
    386,731,850.91/533,690,011.83 = 210,521,183.99/x
  3. Step 3: Cross multiply
    386,731,850.91x = 533,690,011.83 × 210,521,183.99
  4. Step 4: Simplify right side
    386,731,850.91x = 112,353,053,171,420,256
  5. Step 5: Solve for x
    x = 112,353,053,171,420,256/386,731,850.91
  6. Step 6: Final answer
    x = 290,519,265.24

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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.