Finding the Fourth Proportional to 489,120,649.53, 674,989,431.69 and 266,103,930.97
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Solution
The fourth proportional to 489,120,649.53, 674,989,431.69 and 266,103,930.97 is: 367,225,021.70
Step by Step Solution
- Step 1: Write the proportion equation
489,120,649.53 : 674,989,431.69 = 266,103,930.97 : x - Step 2: Convert to fraction form
489,120,649.53/674,989,431.69 = 266,103,930.97/x - Step 3: Cross multiply
489,120,649.53x = 674,989,431.69 × 266,103,930.97 - Step 4: Simplify right side
489,120,649.53x = 179,617,341,135,915,296 - Step 5: Solve for x
x = 179,617,341,135,915,296/489,120,649.53 - Step 6: Final answer
x = 367,225,021.70
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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.