Finding the Fourth Proportional to 21,409,179.67, 29,544,697.18 and 11,619,623.99
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Solution
The fourth proportional to 21,409,179.67, 29,544,697.18 and 11,619,623.99 is: 16,035,096.98
Step by Step Solution
- Step 1: Write the proportion equation
21,409,179.67 : 29,544,697.18 = 11,619,623.99 : x - Step 2: Convert to fraction form
21,409,179.67/29,544,697.18 = 11,619,623.99/x - Step 3: Cross multiply
21,409,179.67x = 29,544,697.18 × 11,619,623.99 - Step 4: Simplify right side
21,409,179.67x = 343,298,272,218,399.62 - Step 5: Solve for x
x = 343,298,272,218,399.62/21,409,179.67 - Step 6: Final answer
x = 16,035,096.98
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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.