Home / 201,907,956.22-278,632,428.85-112,599,997.37

Finding the Fourth Proportional to 201,907,956.22, 278,632,428.85 and 112,599,997.37

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Solution

The fourth proportional to 201,907,956.22, 278,632,428.85 and 112,599,997.37 is: 155,387,689.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,907,956.22 : 278,632,428.85 = 112,599,997.37 : x
  2. Step 2: Convert to fraction form
    201,907,956.22/278,632,428.85 = 112,599,997.37/x
  3. Step 3: Cross multiply
    201,907,956.22x = 278,632,428.85 × 112,599,997.37
  4. Step 4: Simplify right side
    201,907,956.22x = 31,374,010,757,067,872
  5. Step 5: Solve for x
    x = 31,374,010,757,067,872/201,907,956.22
  6. Step 6: Final answer
    x = 155,387,689.25

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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.