Finding the Fourth Proportional to 3,909,186.41, 5,394,673.62 and 2,190,319.22
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Solution
The fourth proportional to 3,909,186.41, 5,394,673.62 and 2,190,319.22 is: 3,022,638.49
Step by Step Solution
- Step 1: Write the proportion equation
3,909,186.41 : 5,394,673.62 = 2,190,319.22 : x - Step 2: Convert to fraction form
3,909,186.41/5,394,673.62 = 2,190,319.22/x - Step 3: Cross multiply
3,909,186.41x = 5,394,673.62 × 2,190,319.22 - Step 4: Simplify right side
3,909,186.41x = 11,816,057,315,512.98 - Step 5: Solve for x
x = 11,816,057,315,512.98/3,909,186.41 - Step 6: Final answer
x = 3,022,638.49
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1.5x scale
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.