Finding the Fourth Proportional to 5,107,957.21, 7,049,028.26 and 2,816,199.91
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Solution
The fourth proportional to 5,107,957.21, 7,049,028.26 and 2,816,199.91 is: 3,886,381.95
Step by Step Solution
- Step 1: Write the proportion equation
5,107,957.21 : 7,049,028.26 = 2,816,199.91 : x - Step 2: Convert to fraction form
5,107,957.21/7,049,028.26 = 2,816,199.91/x - Step 3: Cross multiply
5,107,957.21x = 7,049,028.26 × 2,816,199.91 - Step 4: Simplify right side
5,107,957.21x = 19,851,472,702,073.31 - Step 5: Solve for x
x = 19,851,472,702,073.31/5,107,957.21 - Step 6: Final answer
x = 3,886,381.95
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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.