Finding the Fourth Proportional to 14,228,621.10, 21,336,286.95 and 5,129,520.30
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Solution
The fourth proportional to 14,228,621.10, 21,336,286.95 and 5,129,520.30 is: 7,691,884.99
Step by Step Solution
- Step 1: Write the proportion equation
14,228,621.10 : 21,336,286.95 = 5,129,520.30 : x - Step 2: Convert to fraction form
14,228,621.10/21,336,286.95 = 5,129,520.30/x - Step 3: Cross multiply
14,228,621.10x = 21,336,286.95 × 5,129,520.30 - Step 4: Simplify right side
14,228,621.10x = 109,444,917,036,650.08 - Step 5: Solve for x
x = 109,444,917,036,650.08/14,228,621.10 - Step 6: Final answer
x = 7,691,884.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.