Finding the Fourth Proportional to 81,469,458.81, 112,381,837.29 and 48,440,359.62
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Solution
The fourth proportional to 81,469,458.81, 112,381,837.29 and 48,440,359.62 is: 66,820,336.02
Step by Step Solution
- Step 1: Write the proportion equation
81,469,458.81 : 112,381,837.29 = 48,440,359.62 : x - Step 2: Convert to fraction form
81,469,458.81/112,381,837.29 = 48,440,359.62/x - Step 3: Cross multiply
81,469,458.81x = 112,381,837.29 × 48,440,359.62 - Step 4: Simplify right side
81,469,458.81x = 5,443,816,613,083,926 - Step 5: Solve for x
x = 5,443,816,613,083,926/81,469,458.81 - Step 6: Final answer
x = 66,820,336.02
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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.