Finding the Fourth Proportional to 151,672,519.80, 227,508,779.70 and 121,439,431.80
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Solution
The fourth proportional to 151,672,519.80, 227,508,779.70 and 121,439,431.80 is: 182,159,147.70
Step by Step Solution
- Step 1: Write the proportion equation
151,672,519.80 : 227,508,779.70 = 121,439,431.80 : x - Step 2: Convert to fraction form
151,672,519.80/227,508,779.70 = 121,439,431.80/x - Step 3: Cross multiply
151,672,519.80x = 227,508,779.70 × 121,439,431.80 - Step 4: Simplify right side
151,672,519.80x = 27,628,536,936,279,372 - Step 5: Solve for x
x = 27,628,536,936,279,372/151,672,519.80 - Step 6: Final answer
x = 182,159,147.70
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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.