Finding the Fourth Proportional to 131,726,163.60, 181,781,926.92 and 72,992,632.68
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Solution
The fourth proportional to 131,726,163.60, 181,781,926.92 and 72,992,632.68 is: 100,729,733.99
Step by Step Solution
- Step 1: Write the proportion equation
131,726,163.60 : 181,781,926.92 = 72,992,632.68 : x - Step 2: Convert to fraction form
131,726,163.60/181,781,926.92 = 72,992,632.68/x - Step 3: Cross multiply
131,726,163.60x = 181,781,926.92 × 72,992,632.68 - Step 4: Simplify right side
131,726,163.60x = 13,268,741,419,534,164 - Step 5: Solve for x
x = 13,268,741,419,534,164/131,726,163.60 - Step 6: Final answer
x = 100,729,733.99
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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.