Finding the Fourth Proportional to 67,876,631.55, 93,716,614.58 and 63,540,072.99
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Solution
The fourth proportional to 67,876,631.55, 93,716,614.58 and 63,540,072.99 is: 87,729,169.74
Step by Step Solution
- Step 1: Write the proportion equation
67,876,631.55 : 93,716,614.58 = 63,540,072.99 : x - Step 2: Convert to fraction form
67,876,631.55/93,716,614.58 = 63,540,072.99/x - Step 3: Cross multiply
67,876,631.55x = 93,716,614.58 × 63,540,072.99 - Step 4: Simplify right side
67,876,631.55x = 5,954,760,530,471,198 - Step 5: Solve for x
x = 5,954,760,530,471,198/67,876,631.55 - Step 6: Final answer
x = 87,729,169.74
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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.