Finding the Fourth Proportional to 11,088,928.20, 16,629,455.70 and 7,677,208.20
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Solution
The fourth proportional to 11,088,928.20, 16,629,455.70 and 7,677,208.20 is: 11,513,086.87
Step by Step Solution
- Step 1: Write the proportion equation
11,088,928.20 : 16,629,455.70 = 7,677,208.20 : x - Step 2: Convert to fraction form
11,088,928.20/16,629,455.70 = 7,677,208.20/x - Step 3: Cross multiply
11,088,928.20x = 16,629,455.70 × 7,677,208.20 - Step 4: Simplify right side
11,088,928.20x = 127,667,793,661,576.73 - Step 5: Solve for x
x = 127,667,793,661,576.73/11,088,928.20 - Step 6: Final answer
x = 11,513,086.87
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.