Finding the Fourth Proportional to 7,479,274.74, 11,218,912.11 and 1,799,499.12
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Solution
The fourth proportional to 7,479,274.74, 11,218,912.11 and 1,799,499.12 is: 2,699,248.68
Step by Step Solution
- Step 1: Write the proportion equation
7,479,274.74 : 11,218,912.11 = 1,799,499.12 : x - Step 2: Convert to fraction form
7,479,274.74/11,218,912.11 = 1,799,499.12/x - Step 3: Cross multiply
7,479,274.74x = 11,218,912.11 × 1,799,499.12 - Step 4: Simplify right side
7,479,274.74x = 20,188,422,469,302.34 - Step 5: Solve for x
x = 20,188,422,469,302.34/7,479,274.74 - Step 6: Final answer
x = 2,699,248.68
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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.