Finding the Fourth Proportional to 437,034,945.80, 655,552,418.70 and 416,879,553.80
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Solution
The fourth proportional to 437,034,945.80, 655,552,418.70 and 416,879,553.80 is: 625,319,330.70
Step by Step Solution
- Step 1: Write the proportion equation
437,034,945.80 : 655,552,418.70 = 416,879,553.80 : x - Step 2: Convert to fraction form
437,034,945.80/655,552,418.70 = 416,879,553.80/x - Step 3: Cross multiply
437,034,945.80x = 655,552,418.70 × 416,879,553.80 - Step 4: Simplify right side
437,034,945.80x = 273,286,399,800,166,816 - Step 5: Solve for x
x = 273,286,399,800,166,816/437,034,945.80 - Step 6: Final answer
x = 625,319,330.70
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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.