Finding the Fourth Proportional to 18,994,321.28, 26,212,645.44 and 11,656,207.36
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Solution
The fourth proportional to 18,994,321.28, 26,212,645.44 and 11,656,207.36 is: 16,085,861.99
Step by Step Solution
- Step 1: Write the proportion equation
18,994,321.28 : 26,212,645.44 = 11,656,207.36 : x - Step 2: Convert to fraction form
18,994,321.28/26,212,645.44 = 11,656,207.36/x - Step 3: Cross multiply
18,994,321.28x = 26,212,645.44 × 11,656,207.36 - Step 4: Simplify right side
18,994,321.28x = 305,540,030,702,798.44 - Step 5: Solve for x
x = 305,540,030,702,798.44/18,994,321.28 - Step 6: Final answer
x = 16,085,861.99
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.