Finding the Fourth Proportional to 8,631,981.64, 11,912,135.70 and 4,764,503.85
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Solution
The fourth proportional to 8,631,981.64, 11,912,135.70 and 4,764,503.85 is: 6,575,015.89
Step by Step Solution
- Step 1: Write the proportion equation
8,631,981.64 : 11,912,135.70 = 4,764,503.85 : x - Step 2: Convert to fraction form
8,631,981.64/11,912,135.70 = 4,764,503.85/x - Step 3: Cross multiply
8,631,981.64x = 11,912,135.70 × 4,764,503.85 - Step 4: Simplify right side
8,631,981.64x = 56,755,416,404,372.44 - Step 5: Solve for x
x = 56,755,416,404,372.44/8,631,981.64 - Step 6: Final answer
x = 6,575,015.89
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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.