Finding the Fourth Proportional to 7,207,709.19, 9,946,505.70 and 3,944,458.46
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Solution
The fourth proportional to 7,207,709.19, 9,946,505.70 and 3,944,458.46 is: 5,443,279.90
Step by Step Solution
- Step 1: Write the proportion equation
7,207,709.19 : 9,946,505.70 = 3,944,458.46 : x - Step 2: Convert to fraction form
7,207,709.19/9,946,505.70 = 3,944,458.46/x - Step 3: Cross multiply
7,207,709.19x = 9,946,505.70 × 3,944,458.46 - Step 4: Simplify right side
7,207,709.19x = 39,233,578,555,803.22 - Step 5: Solve for x
x = 39,233,578,555,803.22/7,207,709.19 - Step 6: Final answer
x = 5,443,279.90
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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.