Finding the Fourth Proportional to 21,080,964.24, 29,088,513.36 and 11,910,260.88
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Solution
The fourth proportional to 21,080,964.24, 29,088,513.36 and 11,910,260.88 is: 16,434,342.32
Step by Step Solution
- Step 1: Write the proportion equation
21,080,964.24 : 29,088,513.36 = 11,910,260.88 : x - Step 2: Convert to fraction form
21,080,964.24/29,088,513.36 = 11,910,260.88/x - Step 3: Cross multiply
21,080,964.24x = 29,088,513.36 × 11,910,260.88 - Step 4: Simplify right side
21,080,964.24x = 346,451,782,728,965.38 - Step 5: Solve for x
x = 346,451,782,728,965.38/21,080,964.24 - Step 6: Final answer
x = 16,434,342.32
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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.