Finding the Fourth Proportional to 331,948,906.80, 497,923,360.20 and 202,808,743.80
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Solution
The fourth proportional to 331,948,906.80, 497,923,360.20 and 202,808,743.80 is: 304,213,115.70
Step by Step Solution
- Step 1: Write the proportion equation
331,948,906.80 : 497,923,360.20 = 202,808,743.80 : x - Step 2: Convert to fraction form
331,948,906.80/497,923,360.20 = 202,808,743.80/x - Step 3: Cross multiply
331,948,906.80x = 497,923,360.20 × 202,808,743.80 - Step 4: Simplify right side
331,948,906.80x = 100,983,211,190,836,928 - Step 5: Solve for x
x = 100,983,211,190,836,928/331,948,906.80 - Step 6: Final answer
x = 304,213,115.70
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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.