Finding the Fourth Proportional to 5,534,941.12, 7,638,408.40 and 3,211,658.62
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Solution
The fourth proportional to 5,534,941.12, 7,638,408.40 and 3,211,658.62 is: 4,432,198.94
Step by Step Solution
- Step 1: Write the proportion equation
5,534,941.12 : 7,638,408.40 = 3,211,658.62 : x - Step 2: Convert to fraction form
5,534,941.12/7,638,408.40 = 3,211,658.62/x - Step 3: Cross multiply
5,534,941.12x = 7,638,408.40 × 3,211,658.62 - Step 4: Simplify right side
5,534,941.12x = 24,531,960,180,940.41 - Step 5: Solve for x
x = 24,531,960,180,940.41/5,534,941.12 - Step 6: Final answer
x = 4,432,198.94
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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.