Finding the Fourth Proportional to 11,985,056.49, 16,539,370.82 and 6,478,431.43
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Solution
The fourth proportional to 11,985,056.49, 16,539,370.82 and 6,478,431.43 is: 8,940,231.52
Step by Step Solution
- Step 1: Write the proportion equation
11,985,056.49 : 16,539,370.82 = 6,478,431.43 : x - Step 2: Convert to fraction form
11,985,056.49/16,539,370.82 = 6,478,431.43/x - Step 3: Cross multiply
11,985,056.49x = 16,539,370.82 × 6,478,431.43 - Step 4: Simplify right side
11,985,056.49x = 107,149,179,727,198.41 - Step 5: Solve for x
x = 107,149,179,727,198.41/11,985,056.49 - Step 6: Final answer
x = 8,940,231.52
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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.