Home / 209,871,306.56-289,622,789.52-117,057,796.76

Finding the Fourth Proportional to 209,871,306.56, 289,622,789.52 and 117,057,796.76

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Solution

The fourth proportional to 209,871,306.56, 289,622,789.52 and 117,057,796.76 is: 161,539,975.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,871,306.56 : 289,622,789.52 = 117,057,796.76 : x
  2. Step 2: Convert to fraction form
    209,871,306.56/289,622,789.52 = 117,057,796.76/x
  3. Step 3: Cross multiply
    209,871,306.56x = 289,622,789.52 × 117,057,796.76
  4. Step 4: Simplify right side
    209,871,306.56x = 33,902,605,632,696,416
  5. Step 5: Solve for x
    x = 33,902,605,632,696,416/209,871,306.56
  6. Step 6: Final answer
    x = 161,539,975.08

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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.