Finding the Fourth Proportional to 5,261,933.39, 7,844,260.53 and 5,179,013.60
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Solution
The fourth proportional to 5,261,933.39, 7,844,260.53 and 5,179,013.60 is: 7,720,647.32
Step by Step Solution
- Step 1: Write the proportion equation
5,261,933.39 : 7,844,260.53 = 5,179,013.60 : x - Step 2: Convert to fraction form
5,261,933.39/7,844,260.53 = 5,179,013.60/x - Step 3: Cross multiply
5,261,933.39x = 7,844,260.53 × 5,179,013.60 - Step 4: Simplify right side
5,261,933.39x = 40,625,531,940,918.14 - Step 5: Solve for x
x = 40,625,531,940,918.14/5,261,933.39 - Step 6: Final answer
x = 7,720,647.32
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.