Finding the Fourth Proportional to 18,352,105.20, 27,528,060.60 and 4,705,225.20
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Solution
The fourth proportional to 18,352,105.20, 27,528,060.60 and 4,705,225.20 is: 7,057,812.88
Step by Step Solution
- Step 1: Write the proportion equation
18,352,105.20 : 27,528,060.60 = 4,705,225.20 : x - Step 2: Convert to fraction form
18,352,105.20/27,528,060.60 = 4,705,225.20/x - Step 3: Cross multiply
18,352,105.20x = 27,528,060.60 × 4,705,225.20 - Step 4: Simplify right side
18,352,105.20x = 129,525,724,442,247.12 - Step 5: Solve for x
x = 129,525,724,442,247.12/18,352,105.20 - Step 6: Final answer
x = 7,057,812.88
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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.