Home / 289,928,954,217.78-400,114,357,503.54-161,470,382,236.41

Finding the Fourth Proportional to 289,928,954,217.78, 400,114,357,503.54 and 161,470,382,236.41

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Solution

The fourth proportional to 289,928,954,217.78, 400,114,357,503.54 and 161,470,382,236.41 is: 222,836,033,809.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,928,954,217.78 : 400,114,357,503.54 = 161,470,382,236.41 : x
  2. Step 2: Convert to fraction form
    289,928,954,217.78/400,114,357,503.54 = 161,470,382,236.41/x
  3. Step 3: Cross multiply
    289,928,954,217.78x = 400,114,357,503.54 × 161,470,382,236.41
  4. Step 4: Simplify right side
    289,928,954,217.78x = 64,606,618,244,372,206,977,024
  5. Step 5: Solve for x
    x = 64,606,618,244,372,206,977,024/289,928,954,217.78
  6. Step 6: Final answer
    x = 222,836,033,809.31

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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.