Finding the Fourth Proportional to 14,190,911.70, 21,286,367.55 and 6,228,287.70
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Solution
The fourth proportional to 14,190,911.70, 21,286,367.55 and 6,228,287.70 is: 9,342,431.55
Step by Step Solution
- Step 1: Write the proportion equation
14,190,911.70 : 21,286,367.55 = 6,228,287.70 : x - Step 2: Convert to fraction form
14,190,911.70/21,286,367.55 = 6,228,287.70/x - Step 3: Cross multiply
14,190,911.70x = 21,286,367.55 × 6,228,287.70 - Step 4: Simplify right side
14,190,911.70x = 132,577,621,189,344.14 - Step 5: Solve for x
x = 132,577,621,189,344.14/14,190,911.70 - Step 6: Final answer
x = 9,342,431.55
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Similar ratio
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1.5x scale
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.