Home / 221,508,412,788.57-305,512,954,932.96-190,661,198,935.51

Finding the Fourth Proportional to 221,508,412,788.57, 305,512,954,932.96 and 190,661,198,935.51

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Solution

The fourth proportional to 221,508,412,788.57, 305,512,954,932.96 and 190,661,198,935.51 is: 262,967,286,635.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,508,412,788.57 : 305,512,954,932.96 = 190,661,198,935.51 : x
  2. Step 2: Convert to fraction form
    221,508,412,788.57/305,512,954,932.96 = 190,661,198,935.51/x
  3. Step 3: Cross multiply
    221,508,412,788.57x = 305,512,954,932.96 × 190,661,198,935.51
  4. Step 4: Simplify right side
    221,508,412,788.57x = 58,249,466,277,848,592,416,768
  5. Step 5: Solve for x
    x = 58,249,466,277,848,592,416,768/221,508,412,788.57
  6. Step 6: Final answer
    x = 262,967,286,635.06

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1.5x scale

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.