Finding the Fourth Proportional to 1,012,467,272.45, 1,397,194,542.05 and 560,346,121.97
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Solution
The fourth proportional to 1,012,467,272.45, 1,397,194,542.05 and 560,346,121.97 is: 773,271,951.18
Step by Step Solution
- Step 1: Write the proportion equation
1,012,467,272.45 : 1,397,194,542.05 = 560,346,121.97 : x - Step 2: Convert to fraction form
1,012,467,272.45/1,397,194,542.05 = 560,346,121.97/x - Step 3: Cross multiply
1,012,467,272.45x = 1,397,194,542.05 × 560,346,121.97 - Step 4: Simplify right side
1,012,467,272.45x = 782,912,543,278,860,544 - Step 5: Solve for x
x = 782,912,543,278,860,544/1,012,467,272.45 - Step 6: Final answer
x = 773,271,951.18
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1.5x scale
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.