Finding the Fourth Proportional to 11,384,125.76, 15,699,446.70 and 9,068,716.10
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Solution
The fourth proportional to 11,384,125.76, 15,699,446.70 and 9,068,716.10 is: 12,506,346.82
Step by Step Solution
- Step 1: Write the proportion equation
11,384,125.76 : 15,699,446.70 = 9,068,716.10 : x - Step 2: Convert to fraction form
11,384,125.76/15,699,446.70 = 9,068,716.10/x - Step 3: Cross multiply
11,384,125.76x = 15,699,446.70 × 9,068,716.10 - Step 4: Simplify right side
11,384,125.76x = 142,373,825,049,381.84 - Step 5: Solve for x
x = 142,373,825,049,381.84/11,384,125.76 - Step 6: Final answer
x = 12,506,346.82
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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.