Finding the Fourth Proportional to 1,135,599,786.40, 1,703,399,679.60 and 445,529,552.80
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Solution
The fourth proportional to 1,135,599,786.40, 1,703,399,679.60 and 445,529,552.80 is: 668,294,329.20
Step by Step Solution
- Step 1: Write the proportion equation
1,135,599,786.40 : 1,703,399,679.60 = 445,529,552.80 : x - Step 2: Convert to fraction form
1,135,599,786.40/1,703,399,679.60 = 445,529,552.80/x - Step 3: Cross multiply
1,135,599,786.40x = 1,703,399,679.60 × 445,529,552.80 - Step 4: Simplify right side
1,135,599,786.40x = 758,914,897,491,851,264 - Step 5: Solve for x
x = 758,914,897,491,851,264/1,135,599,786.40 - Step 6: Final answer
x = 668,294,329.20
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Similar ratio
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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.