Finding the Fourth Proportional to 5,776,710.50, 7,972,109.60 and 3,198,391.26
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Solution
The fourth proportional to 5,776,710.50, 7,972,109.60 and 3,198,391.26 is: 4,413,917.86
Step by Step Solution
- Step 1: Write the proportion equation
5,776,710.50 : 7,972,109.60 = 3,198,391.26 : x - Step 2: Convert to fraction form
5,776,710.50/7,972,109.60 = 3,198,391.26/x - Step 3: Cross multiply
5,776,710.50x = 7,972,109.60 × 3,198,391.26 - Step 4: Simplify right side
5,776,710.50x = 25,497,925,652,410.14 - Step 5: Solve for x
x = 25,497,925,652,410.14/5,776,710.50 - Step 6: Final answer
x = 4,413,917.86
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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.