Finding the Fourth Proportional to 7,229,736.36, 9,977,137.97 and 3,966,491.79
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Solution
The fourth proportional to 7,229,736.36, 9,977,137.97 and 3,966,491.79 is: 5,473,814.51
Step by Step Solution
- Step 1: Write the proportion equation
7,229,736.36 : 9,977,137.97 = 3,966,491.79 : x - Step 2: Convert to fraction form
7,229,736.36/9,977,137.97 = 3,966,491.79/x - Step 3: Cross multiply
7,229,736.36x = 9,977,137.97 × 3,966,491.79 - Step 4: Simplify right side
7,229,736.36x = 39,574,235,825,869.80 - Step 5: Solve for x
x = 39,574,235,825,869.80/7,229,736.36 - Step 6: Final answer
x = 5,473,814.51
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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.