Home / 387,240,183.65-534,375,904.31-211,024,423.25

Finding the Fourth Proportional to 387,240,183.65, 534,375,904.31 and 211,024,423.25

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Solution

The fourth proportional to 387,240,183.65, 534,375,904.31 and 211,024,423.25 is: 291,205,230.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,240,183.65 : 534,375,904.31 = 211,024,423.25 : x
  2. Step 2: Convert to fraction form
    387,240,183.65/534,375,904.31 = 211,024,423.25/x
  3. Step 3: Cross multiply
    387,240,183.65x = 534,375,904.31 × 211,024,423.25
  4. Step 4: Simplify right side
    387,240,183.65x = 112,766,367,004,659,824
  5. Step 5: Solve for x
    x = 112,766,367,004,659,824/387,240,183.65
  6. Step 6: Final answer
    x = 291,205,230.67

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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.