Finding the Fourth Proportional to 383,107,717.86, 528,688,630.53 and 206,895,696.18
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Solution
The fourth proportional to 383,107,717.86, 528,688,630.53 and 206,895,696.18 is: 285,516,049.86
Step by Step Solution
- Step 1: Write the proportion equation
383,107,717.86 : 528,688,630.53 = 206,895,696.18 : x - Step 2: Convert to fraction form
383,107,717.86/528,688,630.53 = 206,895,696.18/x - Step 3: Cross multiply
383,107,717.86x = 528,688,630.53 × 206,895,696.18 - Step 4: Simplify right side
383,107,717.86x = 109,383,402,275,955,152 - Step 5: Solve for x
x = 109,383,402,275,955,152/383,107,717.86 - Step 6: Final answer
x = 285,516,049.86
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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.