Finding the Fourth Proportional to 3,912,668.76, 5,399,413.74 and 2,193,783.96
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Solution
The fourth proportional to 3,912,668.76, 5,399,413.74 and 2,193,783.96 is: 3,027,383.09
Step by Step Solution
- Step 1: Write the proportion equation
3,912,668.76 : 5,399,413.74 = 2,193,783.96 : x - Step 2: Convert to fraction form
3,912,668.76/5,399,413.74 = 2,193,783.96/x - Step 3: Cross multiply
3,912,668.76x = 5,399,413.74 × 2,193,783.96 - Step 4: Simplify right side
3,912,668.76x = 11,845,147,256,215.61 - Step 5: Solve for x
x = 11,845,147,256,215.61/3,912,668.76 - Step 6: Final answer
x = 3,027,383.09
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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.