Finding the Fourth Proportional to 8,228,043.80, 11,344,149.42 and 6,389,382.68
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Solution
The fourth proportional to 8,228,043.80, 11,344,149.42 and 6,389,382.68 is: 8,809,154.84
Step by Step Solution
- Step 1: Write the proportion equation
8,228,043.80 : 11,344,149.42 = 6,389,382.68 : x - Step 2: Convert to fraction form
8,228,043.80/11,344,149.42 = 6,389,382.68/x - Step 3: Cross multiply
8,228,043.80x = 11,344,149.42 × 6,389,382.68 - Step 4: Simplify right side
8,228,043.80x = 72,482,111,823,480.05 - Step 5: Solve for x
x = 72,482,111,823,480.05/8,228,043.80 - Step 6: Final answer
x = 8,809,154.84
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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.