Finding the Fourth Proportional to 638,476,827.53, 957,255,596.75 and 392,324,878.17
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Solution
The fourth proportional to 638,476,827.53, 957,255,596.75 and 392,324,878.17 is: 588,204,879.46
Step by Step Solution
- Step 1: Write the proportion equation
638,476,827.53 : 957,255,596.75 = 392,324,878.17 : x - Step 2: Convert to fraction form
638,476,827.53/957,255,596.75 = 392,324,878.17/x - Step 3: Cross multiply
638,476,827.53x = 957,255,596.75 × 392,324,878.17 - Step 4: Simplify right side
638,476,827.53x = 375,555,185,373,475,264 - Step 5: Solve for x
x = 375,555,185,373,475,264/638,476,827.53 - Step 6: Final answer
x = 588,204,879.46
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.