Home / 1,081,578,133.09-1,622,140,191.87-305,042,190.40

Finding the Fourth Proportional to 1,081,578,133.09, 1,622,140,191.87 and 305,042,190.40

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Solution

The fourth proportional to 1,081,578,133.09, 1,622,140,191.87 and 305,042,190.40 is: 457,499,261.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,081,578,133.09 : 1,622,140,191.87 = 305,042,190.40 : x
  2. Step 2: Convert to fraction form
    1,081,578,133.09/1,622,140,191.87 = 305,042,190.40/x
  3. Step 3: Cross multiply
    1,081,578,133.09x = 1,622,140,191.87 × 305,042,190.40
  4. Step 4: Simplify right side
    1,081,578,133.09x = 494,821,197,263,900,992
  5. Step 5: Solve for x
    x = 494,821,197,263,900,992/1,081,578,133.09
  6. Step 6: Final answer
    x = 457,499,261.61

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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.