Finding the Fourth Proportional to 3,979,822.16, 5,492,173.11 and 2,261,036.99
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Solution
The fourth proportional to 3,979,822.16, 5,492,173.11 and 2,261,036.99 is: 3,120,241.57
Step by Step Solution
- Step 1: Write the proportion equation
3,979,822.16 : 5,492,173.11 = 2,261,036.99 : x - Step 2: Convert to fraction form
3,979,822.16/5,492,173.11 = 2,261,036.99/x - Step 3: Cross multiply
3,979,822.16x = 5,492,173.11 × 2,261,036.99 - Step 4: Simplify right side
3,979,822.16x = 12,418,006,557,193.34 - Step 5: Solve for x
x = 12,418,006,557,193.34/3,979,822.16 - Step 6: Final answer
x = 3,120,241.57
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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.