Finding the Fourth Proportional to 10,936,808.60, 16,405,212.90 and 8,385,891.80
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Solution
The fourth proportional to 10,936,808.60, 16,405,212.90 and 8,385,891.80 is: 12,578,837.70
Step by Step Solution
- Step 1: Write the proportion equation
10,936,808.60 : 16,405,212.90 = 8,385,891.80 : x - Step 2: Convert to fraction form
10,936,808.60/16,405,212.90 = 8,385,891.80/x - Step 3: Cross multiply
10,936,808.60x = 16,405,212.90 × 8,385,891.80 - Step 4: Simplify right side
10,936,808.60x = 137,572,340,335,364.22 - Step 5: Solve for x
x = 137,572,340,335,364.22/10,936,808.60 - Step 6: Final answer
x = 12,578,837.70
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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.