Finding the Fourth Proportional to 14,929,844.68, 20,601,872.16 and 8,313,933.21
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Solution
The fourth proportional to 14,929,844.68, 20,601,872.16 and 8,313,933.21 is: 11,472,496.39
Step by Step Solution
- Step 1: Write the proportion equation
14,929,844.68 : 20,601,872.16 = 8,313,933.21 : x - Step 2: Convert to fraction form
14,929,844.68/20,601,872.16 = 8,313,933.21/x - Step 3: Cross multiply
14,929,844.68x = 20,601,872.16 × 8,313,933.21 - Step 4: Simplify right side
14,929,844.68x = 171,282,589,139,198.44 - Step 5: Solve for x
x = 171,282,589,139,198.44/14,929,844.68 - Step 6: Final answer
x = 11,472,496.39
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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.