Finding the Fourth Proportional to 18,372,167.70, 27,558,251.55 and 7,585,883.70
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Solution
The fourth proportional to 18,372,167.70, 27,558,251.55 and 7,585,883.70 is: 11,378,825.55
Step by Step Solution
- Step 1: Write the proportion equation
18,372,167.70 : 27,558,251.55 = 7,585,883.70 : x - Step 2: Convert to fraction form
18,372,167.70/27,558,251.55 = 7,585,883.70/x - Step 3: Cross multiply
18,372,167.70x = 27,558,251.55 × 7,585,883.70 - Step 4: Simplify right side
18,372,167.70x = 209,053,691,233,644.75 - Step 5: Solve for x
x = 209,053,691,233,644.75/18,372,167.70 - Step 6: Final answer
x = 11,378,825.55
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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.