Finding the Fourth Proportional to 3,561,133.68, 4,914,136.20 and 1,991,394.95
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Solution
The fourth proportional to 3,561,133.68, 4,914,136.20 and 1,991,394.95 is: 2,747,997.38
Step by Step Solution
- Step 1: Write the proportion equation
3,561,133.68 : 4,914,136.20 = 1,991,394.95 : x - Step 2: Convert to fraction form
3,561,133.68/4,914,136.20 = 1,991,394.95/x - Step 3: Cross multiply
3,561,133.68x = 4,914,136.20 × 1,991,394.95 - Step 4: Simplify right side
3,561,133.68x = 9,785,986,010,410.40 - Step 5: Solve for x
x = 9,785,986,010,410.40/3,561,133.68 - Step 6: Final answer
x = 2,747,997.38
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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.