Finding the Fourth Proportional to 5,776,791.14, 7,972,220.86 and 3,198,471.90
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Solution
The fourth proportional to 5,776,791.14, 7,972,220.86 and 3,198,471.90 is: 4,414,029.14
Step by Step Solution
- Step 1: Write the proportion equation
5,776,791.14 : 7,972,220.86 = 3,198,471.90 : x - Step 2: Convert to fraction form
5,776,791.14/7,972,220.86 = 3,198,471.90/x - Step 3: Cross multiply
5,776,791.14x = 7,972,220.86 × 3,198,471.90 - Step 4: Simplify right side
5,776,791.14x = 25,498,924,401,303.84 - Step 5: Solve for x
x = 25,498,924,401,303.84/5,776,791.14 - Step 6: Final answer
x = 4,414,029.14
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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.