Finding the Fourth Proportional to 135,149,080.68, 186,659,695.80 and 91,613,433.96
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Solution
The fourth proportional to 135,149,080.68, 186,659,695.80 and 91,613,433.96 is: 126,530,906.67
Step by Step Solution
- Step 1: Write the proportion equation
135,149,080.68 : 186,659,695.80 = 91,613,433.96 : x - Step 2: Convert to fraction form
135,149,080.68/186,659,695.80 = 91,613,433.96/x - Step 3: Cross multiply
135,149,080.68x = 186,659,695.80 × 91,613,433.96 - Step 4: Simplify right side
135,149,080.68x = 17,100,535,714,166,990 - Step 5: Solve for x
x = 17,100,535,714,166,990/135,149,080.68 - Step 6: Final answer
x = 126,530,906.67
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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.