Home / 397,423,774.60-548,444,834.24-221,207,976.52

Finding the Fourth Proportional to 397,423,774.60, 548,444,834.24 and 221,207,976.52

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Solution

The fourth proportional to 397,423,774.60, 548,444,834.24 and 221,207,976.52 is: 305,267,021.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,423,774.60 : 548,444,834.24 = 221,207,976.52 : x
  2. Step 2: Convert to fraction form
    397,423,774.60/548,444,834.24 = 221,207,976.52/x
  3. Step 3: Cross multiply
    397,423,774.60x = 548,444,834.24 × 221,207,976.52
  4. Step 4: Simplify right side
    397,423,774.60x = 121,320,372,015,077,216
  5. Step 5: Solve for x
    x = 121,320,372,015,077,216/397,423,774.60
  6. Step 6: Final answer
    x = 305,267,021.68

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.