Finding the Fourth Proportional to 12,071,651.94, 16,650,447.48 and 8,197,447.05
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Solution
The fourth proportional to 12,071,651.94, 16,650,447.48 and 8,197,447.05 is: 11,306,750.91
Step by Step Solution
- Step 1: Write the proportion equation
12,071,651.94 : 16,650,447.48 = 8,197,447.05 : x - Step 2: Convert to fraction form
12,071,651.94/16,650,447.48 = 8,197,447.05/x - Step 3: Cross multiply
12,071,651.94x = 16,650,447.48 × 8,197,447.05 - Step 4: Simplify right side
12,071,651.94x = 136,491,161,576,105.94 - Step 5: Solve for x
x = 136,491,161,576,105.94/12,071,651.94 - Step 6: Final answer
x = 11,306,750.91
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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.