Home / 209,871,343.06-289,622,839.89-117,057,833.26

Finding the Fourth Proportional to 209,871,343.06, 289,622,839.89 and 117,057,833.26

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Solution

The fourth proportional to 209,871,343.06, 289,622,839.89 and 117,057,833.26 is: 161,540,025.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,871,343.06 : 289,622,839.89 = 117,057,833.26 : x
  2. Step 2: Convert to fraction form
    209,871,343.06/289,622,839.89 = 117,057,833.26/x
  3. Step 3: Cross multiply
    209,871,343.06x = 289,622,839.89 × 117,057,833.26
  4. Step 4: Simplify right side
    209,871,343.06x = 33,902,622,100,131,296
  5. Step 5: Solve for x
    x = 33,902,622,100,131,296/209,871,343.06
  6. Step 6: Final answer
    x = 161,540,025.45

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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.