Finding the Fourth Proportional to 18,313,248.61, 27,474,063.75 and 7,940,200.99
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Solution
The fourth proportional to 18,313,248.61, 27,474,063.75 and 7,940,200.99 is: 11,912,118.53
Step by Step Solution
- Step 1: Write the proportion equation
18,313,248.61 : 27,474,063.75 = 7,940,200.99 : x - Step 2: Convert to fraction form
18,313,248.61/27,474,063.75 = 7,940,200.99/x - Step 3: Cross multiply
18,313,248.61x = 27,474,063.75 × 7,940,200.99 - Step 4: Simplify right side
18,313,248.61x = 218,149,588,187,073.12 - Step 5: Solve for x
x = 218,149,588,187,073.12/18,313,248.61 - Step 6: Final answer
x = 11,912,118.53
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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.