Finding the Fourth Proportional to 21,275,138,519.60, 29,834,171,530 and 21,275,138,519.60
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Solution
The fourth proportional to 21,275,138,519.60, 29,834,171,530 and 21,275,138,519.60 is: 29,834,171,530
Step by Step Solution
- Step 1: Write the proportion equation
21,275,138,519.60 : 29,834,171,530 = 21,275,138,519.60 : x - Step 2: Convert to fraction form
21,275,138,519.60/29,834,171,530 = 21,275,138,519.60/x - Step 3: Cross multiply
21,275,138,519.60x = 29,834,171,530 × 21,275,138,519.60 - Step 4: Simplify right side
21,275,138,519.60x = 634,726,131,918,256,603,136 - Step 5: Solve for x
x = 634,726,131,918,256,603,136/21,275,138,519.60 - Step 6: Final answer
x = 29,834,171,530
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Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.