Finding the Fourth Proportional to 18,192,809.70, 27,289,214.55 and 13,409,840.70
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Solution
The fourth proportional to 18,192,809.70, 27,289,214.55 and 13,409,840.70 is: 20,114,761.05
Step by Step Solution
- Step 1: Write the proportion equation
18,192,809.70 : 27,289,214.55 = 13,409,840.70 : x - Step 2: Convert to fraction form
18,192,809.70/27,289,214.55 = 13,409,840.70/x - Step 3: Cross multiply
18,192,809.70x = 27,289,214.55 × 13,409,840.70 - Step 4: Simplify right side
18,192,809.70x = 365,944,019,943,622.19 - Step 5: Solve for x
x = 365,944,019,943,622.19/18,192,809.70 - Step 6: Final answer
x = 20,114,761.05
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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.