Finding the Fourth Proportional to 15,419,161.08, 21,278,467.28 and 8,448,730.96
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Solution
The fourth proportional to 15,419,161.08, 21,278,467.28 and 8,448,730.96 is: 11,659,262.42
Step by Step Solution
- Step 1: Write the proportion equation
15,419,161.08 : 21,278,467.28 = 8,448,730.96 : x - Step 2: Convert to fraction form
15,419,161.08/21,278,467.28 = 8,448,730.96/x - Step 3: Cross multiply
15,419,161.08x = 21,278,467.28 × 8,448,730.96 - Step 4: Simplify right side
15,419,161.08x = 179,776,045,289,883.03 - Step 5: Solve for x
x = 179,776,045,289,883.03/15,419,161.08 - Step 6: Final answer
x = 11,659,262.42
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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.