Finding the Fourth Proportional to 12,318,281.15, 16,993,577.66 and 7,968,770.08
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Solution
The fourth proportional to 12,318,281.15, 16,993,577.66 and 7,968,770.08 is: 10,993,247.48
Step by Step Solution
- Step 1: Write the proportion equation
12,318,281.15 : 16,993,577.66 = 7,968,770.08 : x - Step 2: Convert to fraction form
12,318,281.15/16,993,577.66 = 7,968,770.08/x - Step 3: Cross multiply
12,318,281.15x = 16,993,577.66 × 7,968,770.08 - Step 4: Simplify right side
12,318,281.15x = 135,417,913,126,836.62 - Step 5: Solve for x
x = 135,417,913,126,836.62/12,318,281.15 - Step 6: Final answer
x = 10,993,247.48
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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.