Finding the Fourth Proportional to 7,085,487.36, 9,778,759.44 and 3,988,104.96
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Solution
The fourth proportional to 7,085,487.36, 9,778,759.44 and 3,988,104.96 is: 5,504,027.75
Step by Step Solution
- Step 1: Write the proportion equation
7,085,487.36 : 9,778,759.44 = 3,988,104.96 : x - Step 2: Convert to fraction form
7,085,487.36/9,778,759.44 = 3,988,104.96/x - Step 3: Cross multiply
7,085,487.36x = 9,778,759.44 × 3,988,104.96 - Step 4: Simplify right side
7,085,487.36x = 38,998,719,025,310.82 - Step 5: Solve for x
x = 38,998,719,025,310.82/7,085,487.36 - Step 6: Final answer
x = 5,504,027.75
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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.