Finding the Fourth Proportional to 312,273,631.44, 430,940,161.98 and 173,046,717.72
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Solution
The fourth proportional to 312,273,631.44, 430,940,161.98 and 173,046,717.72 is: 238,805,883.87
Step by Step Solution
- Step 1: Write the proportion equation
312,273,631.44 : 430,940,161.98 = 173,046,717.72 : x - Step 2: Convert to fraction form
312,273,631.44/430,940,161.98 = 173,046,717.72/x - Step 3: Cross multiply
312,273,631.44x = 430,940,161.98 × 173,046,717.72 - Step 4: Simplify right side
312,273,631.44x = 74,572,780,564,364,144 - Step 5: Solve for x
x = 74,572,780,564,364,144/312,273,631.44 - Step 6: Final answer
x = 238,805,883.87
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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.