Finding the Fourth Proportional to 11,868,446.40, 16,378,464.96 and 6,435,936.96
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Solution
The fourth proportional to 11,868,446.40, 16,378,464.96 and 6,435,936.96 is: 8,881,597.85
Step by Step Solution
- Step 1: Write the proportion equation
11,868,446.40 : 16,378,464.96 = 6,435,936.96 : x - Step 2: Convert to fraction form
11,868,446.40/16,378,464.96 = 6,435,936.96/x - Step 3: Cross multiply
11,868,446.40x = 16,378,464.96 × 6,435,936.96 - Step 4: Simplify right side
11,868,446.40x = 105,410,767,984,128.92 - Step 5: Solve for x
x = 105,410,767,984,128.92/11,868,446.40 - Step 6: Final answer
x = 8,881,597.85
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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.