Finding the Fourth Proportional to 4,160,631.40, 6,245,612.70 and 3,218,180.20
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Solution
The fourth proportional to 4,160,631.40, 6,245,612.70 and 3,218,180.20 is: 4,830,879.07
Step by Step Solution
- Step 1: Write the proportion equation
4,160,631.40 : 6,245,612.70 = 3,218,180.20 : x - Step 2: Convert to fraction form
4,160,631.40/6,245,612.70 = 3,218,180.20/x - Step 3: Cross multiply
4,160,631.40x = 6,245,612.70 × 3,218,180.20 - Step 4: Simplify right side
4,160,631.40x = 20,099,507,128,008.54 - Step 5: Solve for x
x = 20,099,507,128,008.54/4,160,631.40 - Step 6: Final answer
x = 4,830,879.07
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.