Finding the Fourth Proportional to 3,972,005.62, 5,481,549.80 and 2,205,912.01
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Solution
The fourth proportional to 3,972,005.62, 5,481,549.80 and 2,205,912.01 is: 3,044,259.67
Step by Step Solution
- Step 1: Write the proportion equation
3,972,005.62 : 5,481,549.80 = 2,205,912.01 : x - Step 2: Convert to fraction form
3,972,005.62/5,481,549.80 = 2,205,912.01/x - Step 3: Cross multiply
3,972,005.62x = 5,481,549.80 × 2,205,912.01 - Step 4: Simplify right side
3,972,005.62x = 12,091,816,528,041.13 - Step 5: Solve for x
x = 12,091,816,528,041.13/3,972,005.62 - Step 6: Final answer
x = 3,044,259.67
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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.