Home / 438,702,850.88-654,132,154.08-426,649,768.64

Finding the Fourth Proportional to 438,702,850.88, 654,132,154.08 and 426,649,768.64

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Solution

The fourth proportional to 438,702,850.88, 654,132,154.08 and 426,649,768.64 is: 636,160,288.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,702,850.88 : 654,132,154.08 = 426,649,768.64 : x
  2. Step 2: Convert to fraction form
    438,702,850.88/654,132,154.08 = 426,649,768.64/x
  3. Step 3: Cross multiply
    438,702,850.88x = 654,132,154.08 × 426,649,768.64
  4. Step 4: Simplify right side
    438,702,850.88x = 279,085,332,198,216,832
  5. Step 5: Solve for x
    x = 279,085,332,198,216,832/438,702,850.88
  6. Step 6: Final answer
    x = 636,160,288.54

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.