Home / 202,147,839.28-278,964,018.48-109,328,347.36

Finding the Fourth Proportional to 202,147,839.28, 278,964,018.48 and 109,328,347.36

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Solution

The fourth proportional to 202,147,839.28, 278,964,018.48 and 109,328,347.36 is: 150,873,119.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,147,839.28 : 278,964,018.48 = 109,328,347.36 : x
  2. Step 2: Convert to fraction form
    202,147,839.28/278,964,018.48 = 109,328,347.36/x
  3. Step 3: Cross multiply
    202,147,839.28x = 278,964,018.48 × 109,328,347.36
  4. Step 4: Simplify right side
    202,147,839.28x = 30,498,675,113,322,900
  5. Step 5: Solve for x
    x = 30,498,675,113,322,900/202,147,839.28
  6. Step 6: Final answer
    x = 150,873,119.50

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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.