Home / 111,617,505.09-154,040,783.47-66,965,157.54

Finding the Fourth Proportional to 111,617,505.09, 154,040,783.47 and 66,965,157.54

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Solution

The fourth proportional to 111,617,505.09, 154,040,783.47 and 66,965,157.54 is: 92,417,092.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,617,505.09 : 154,040,783.47 = 66,965,157.54 : x
  2. Step 2: Convert to fraction form
    111,617,505.09/154,040,783.47 = 66,965,157.54/x
  3. Step 3: Cross multiply
    111,617,505.09x = 154,040,783.47 × 66,965,157.54
  4. Step 4: Simplify right side
    111,617,505.09x = 10,315,365,332,486,164
  5. Step 5: Solve for x
    x = 10,315,365,332,486,164/111,617,505.09
  6. Step 6: Final answer
    x = 92,417,092.86

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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.