Home / 186,147,949.82-278,858,675.48-145,014,790.05

Finding the Fourth Proportional to 186,147,949.82, 278,858,675.48 and 145,014,790.05

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Solution

The fourth proportional to 186,147,949.82, 278,858,675.48 and 145,014,790.05 is: 217,239,203.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,147,949.82 : 278,858,675.48 = 145,014,790.05 : x
  2. Step 2: Convert to fraction form
    186,147,949.82/278,858,675.48 = 145,014,790.05/x
  3. Step 3: Cross multiply
    186,147,949.82x = 278,858,675.48 × 145,014,790.05
  4. Step 4: Simplify right side
    186,147,949.82x = 40,438,632,277,628,216
  5. Step 5: Solve for x
    x = 40,438,632,277,628,216/186,147,949.82
  6. Step 6: Final answer
    x = 217,239,203.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.