Finding the Fourth Proportional to 6,415,514.92, 8,853,410.30 and 3,515,015.80
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Solution
The fourth proportional to 6,415,514.92, 8,853,410.30 and 3,515,015.80 is: 4,850,721.65
Step by Step Solution
- Step 1: Write the proportion equation
6,415,514.92 : 8,853,410.30 = 3,515,015.80 : x - Step 2: Convert to fraction form
6,415,514.92/8,853,410.30 = 3,515,015.80/x - Step 3: Cross multiply
6,415,514.92x = 8,853,410.30 × 3,515,015.80 - Step 4: Simplify right side
6,415,514.92x = 31,119,877,088,382.74 - Step 5: Solve for x
x = 31,119,877,088,382.74/6,415,514.92 - Step 6: Final answer
x = 4,850,721.65
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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.