Finding the Fourth Proportional to 12,469,770.63, 17,208,620.78 and 7,573,869.99
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Solution
The fourth proportional to 12,469,770.63, 17,208,620.78 and 7,573,869.99 is: 10,452,145.46
Step by Step Solution
- Step 1: Write the proportion equation
12,469,770.63 : 17,208,620.78 = 7,573,869.99 : x - Step 2: Convert to fraction form
12,469,770.63/17,208,620.78 = 7,573,869.99/x - Step 3: Cross multiply
12,469,770.63x = 17,208,620.78 × 7,573,869.99 - Step 4: Simplify right side
12,469,770.63x = 130,335,856,457,063.03 - Step 5: Solve for x
x = 130,335,856,457,063.03/12,469,770.63 - Step 6: Final answer
x = 10,452,145.46
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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.