Finding the Fourth Proportional to 11,889,651.20, 16,409,119.36 and 7,060,755.20
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Solution
The fourth proportional to 11,889,651.20, 16,409,119.36 and 7,060,755.20 is: 9,744,673.99
Step by Step Solution
- Step 1: Write the proportion equation
11,889,651.20 : 16,409,119.36 = 7,060,755.20 : x - Step 2: Convert to fraction form
11,889,651.20/16,409,119.36 = 7,060,755.20/x - Step 3: Cross multiply
11,889,651.20x = 16,409,119.36 × 7,060,755.20 - Step 4: Simplify right side
11,889,651.20x = 115,860,774,848,540.67 - Step 5: Solve for x
x = 115,860,774,848,540.67/11,889,651.20 - Step 6: Final answer
x = 9,744,673.99
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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.