Home / 305,313,708.17-421,332,598.32-166,084,137.79

Finding the Fourth Proportional to 305,313,708.17, 421,332,598.32 and 166,084,137.79

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Solution

The fourth proportional to 305,313,708.17, 421,332,598.32 and 166,084,137.79 is: 229,195,936.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,313,708.17 : 421,332,598.32 = 166,084,137.79 : x
  2. Step 2: Convert to fraction form
    305,313,708.17/421,332,598.32 = 166,084,137.79/x
  3. Step 3: Cross multiply
    305,313,708.17x = 421,332,598.32 × 166,084,137.79
  4. Step 4: Simplify right side
    305,313,708.17x = 69,976,661,313,121,456
  5. Step 5: Solve for x
    x = 69,976,661,313,121,456/305,313,708.17
  6. Step 6: Final answer
    x = 229,195,936.64

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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.