Finding the Fourth Proportional to 11,289,704.13, 16,908,943.68 and 7,191,047.43
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Solution
The fourth proportional to 11,289,704.13, 16,908,943.68 and 7,191,047.43 is: 10,770,257.09
Step by Step Solution
- Step 1: Write the proportion equation
11,289,704.13 : 16,908,943.68 = 7,191,047.43 : x - Step 2: Convert to fraction form
11,289,704.13/16,908,943.68 = 7,191,047.43/x - Step 3: Cross multiply
11,289,704.13x = 16,908,943.68 × 7,191,047.43 - Step 4: Simplify right side
11,289,704.13x = 121,593,015,994,078.73 - Step 5: Solve for x
x = 121,593,015,994,078.73/11,289,704.13 - Step 6: Final answer
x = 10,770,257.09
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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.