Home / 209,485,404.36-289,098,827.32-116,665,912.12

Finding the Fourth Proportional to 209,485,404.36, 289,098,827.32 and 116,665,912.12

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Solution

The fourth proportional to 209,485,404.36, 289,098,827.32 and 116,665,912.12 is: 161,003,953.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,485,404.36 : 289,098,827.32 = 116,665,912.12 : x
  2. Step 2: Convert to fraction form
    209,485,404.36/289,098,827.32 = 116,665,912.12/x
  3. Step 3: Cross multiply
    209,485,404.36x = 289,098,827.32 × 116,665,912.12
  4. Step 4: Simplify right side
    209,485,404.36x = 33,727,978,382,110,176
  5. Step 5: Solve for x
    x = 33,727,978,382,110,176/209,485,404.36
  6. Step 6: Final answer
    x = 161,003,953.88

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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.