Finding the Fourth Proportional to 11,989,872.18, 16,544,988.45 and 6,762,592.26
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Solution
The fourth proportional to 11,989,872.18, 16,544,988.45 and 6,762,592.26 is: 9,331,793.46
Step by Step Solution
- Step 1: Write the proportion equation
11,989,872.18 : 16,544,988.45 = 6,762,592.26 : x - Step 2: Convert to fraction form
11,989,872.18/16,544,988.45 = 6,762,592.26/x - Step 3: Cross multiply
11,989,872.18x = 16,544,988.45 × 6,762,592.26 - Step 4: Simplify right side
11,989,872.18x = 111,887,010,833,759.39 - Step 5: Solve for x
x = 111,887,010,833,759.39/11,989,872.18 - Step 6: Final answer
x = 9,331,793.46
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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.