Finding the Fourth Proportional to 4,085,729.98, 5,638,125.42 and 2,342,149.40
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Solution
The fourth proportional to 4,085,729.98, 5,638,125.42 and 2,342,149.40 is: 3,232,061.87
Step by Step Solution
- Step 1: Write the proportion equation
4,085,729.98 : 5,638,125.42 = 2,342,149.40 : x - Step 2: Convert to fraction form
4,085,729.98/5,638,125.42 = 2,342,149.40/x - Step 3: Cross multiply
4,085,729.98x = 5,638,125.42 × 2,342,149.40 - Step 4: Simplify right side
4,085,729.98x = 13,205,332,069,577.75 - Step 5: Solve for x
x = 13,205,332,069,577.75/4,085,729.98 - Step 6: Final answer
x = 3,232,061.87
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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.