Finding the Fourth Proportional to 21,714,274.10, 29,972,415.81 and 13,979,310.26
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Solution
The fourth proportional to 21,714,274.10, 29,972,415.81 and 13,979,310.26 is: 19,295,772.81
Step by Step Solution
- Step 1: Write the proportion equation
21,714,274.10 : 29,972,415.81 = 13,979,310.26 : x - Step 2: Convert to fraction form
21,714,274.10/29,972,415.81 = 13,979,310.26/x - Step 3: Cross multiply
21,714,274.10x = 29,972,415.81 × 13,979,310.26 - Step 4: Simplify right side
21,714,274.10x = 418,993,699,849,719.19 - Step 5: Solve for x
x = 418,993,699,849,719.19/21,714,274.10 - Step 6: Final answer
x = 19,295,772.81
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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.