Finding the Fourth Proportional to 6,478,625.07, 8,940,563.79 and 3,687,612.03
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Solution
The fourth proportional to 6,478,625.07, 8,940,563.79 and 3,687,612.03 is: 5,088,939.43
Step by Step Solution
- Step 1: Write the proportion equation
6,478,625.07 : 8,940,563.79 = 3,687,612.03 : x - Step 2: Convert to fraction form
6,478,625.07/8,940,563.79 = 3,687,612.03/x - Step 3: Cross multiply
6,478,625.07x = 8,940,563.79 × 3,687,612.03 - Step 4: Simplify right side
6,478,625.07x = 32,969,330,586,986.39 - Step 5: Solve for x
x = 32,969,330,586,986.39/6,478,625.07 - Step 6: Final answer
x = 5,088,939.43
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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.