Finding the Fourth Proportional to 5,230,391.76, 7,215,026.40 and 4,860,492.12
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Solution
The fourth proportional to 5,230,391.76, 7,215,026.40 and 4,860,492.12 is: 6,704,770.99
Step by Step Solution
- Step 1: Write the proportion equation
5,230,391.76 : 7,215,026.40 = 4,860,492.12 : x - Step 2: Convert to fraction form
5,230,391.76/7,215,026.40 = 4,860,492.12/x - Step 3: Cross multiply
5,230,391.76x = 7,215,026.40 × 4,860,492.12 - Step 4: Simplify right side
5,230,391.76x = 35,068,578,962,791.97 - Step 5: Solve for x
x = 35,068,578,962,791.97/5,230,391.76 - Step 6: Final answer
x = 6,704,770.99
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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.