Finding the Fourth Proportional to 8,229,931.29, 11,361,243.47 and 5,481,193.05
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Solution
The fourth proportional to 8,229,931.29, 11,361,243.47 and 5,481,193.05 is: 7,566,669.33
Step by Step Solution
- Step 1: Write the proportion equation
8,229,931.29 : 11,361,243.47 = 5,481,193.05 : x - Step 2: Convert to fraction form
8,229,931.29/11,361,243.47 = 5,481,193.05/x - Step 3: Cross multiply
8,229,931.29x = 11,361,243.47 × 5,481,193.05 - Step 4: Simplify right side
8,229,931.29x = 62,273,168,719,715.91 - Step 5: Solve for x
x = 62,273,168,719,715.91/8,229,931.29 - Step 6: Final answer
x = 7,566,669.33
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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.