Finding the Fourth Proportional to 13,380,211.68, 18,464,692.14 and 7,268,640.18
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Solution
The fourth proportional to 13,380,211.68, 18,464,692.14 and 7,268,640.18 is: 10,030,723.46
Step by Step Solution
- Step 1: Write the proportion equation
13,380,211.68 : 18,464,692.14 = 7,268,640.18 : x - Step 2: Convert to fraction form
13,380,211.68/18,464,692.14 = 7,268,640.18/x - Step 3: Cross multiply
13,380,211.68x = 18,464,692.14 × 7,268,640.18 - Step 4: Simplify right side
13,380,211.68x = 134,213,203,200,134.19 - Step 5: Solve for x
x = 134,213,203,200,134.19/13,380,211.68 - Step 6: Final answer
x = 10,030,723.46
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1.5x scale
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.