Finding the Fourth Proportional to 115,183,503.20, 172,775,254.80 and 107,625,231.20
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Solution
The fourth proportional to 115,183,503.20, 172,775,254.80 and 107,625,231.20 is: 161,437,846.80
Step by Step Solution
- Step 1: Write the proportion equation
115,183,503.20 : 172,775,254.80 = 107,625,231.20 : x - Step 2: Convert to fraction form
115,183,503.20/172,775,254.80 = 107,625,231.20/x - Step 3: Cross multiply
115,183,503.20x = 172,775,254.80 × 107,625,231.20 - Step 4: Simplify right side
115,183,503.20x = 18,594,976,743,488,912 - Step 5: Solve for x
x = 18,594,976,743,488,912/115,183,503.20 - Step 6: Final answer
x = 161,437,846.80
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1.5x scale
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.