Finding the Fourth Proportional to 755,958,517.05, 1,043,227,212.42 and 438,607,723.80
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Solution
The fourth proportional to 755,958,517.05, 1,043,227,212.42 and 438,607,723.80 is: 605,281,245.90
Step by Step Solution
- Step 1: Write the proportion equation
755,958,517.05 : 1,043,227,212.42 = 438,607,723.80 : x - Step 2: Convert to fraction form
755,958,517.05/1,043,227,212.42 = 438,607,723.80/x - Step 3: Cross multiply
755,958,517.05x = 1,043,227,212.42 × 438,607,723.80 - Step 4: Simplify right side
755,958,517.05x = 457,567,513,045,755,264 - Step 5: Solve for x
x = 457,567,513,045,755,264/755,958,517.05 - Step 6: Final answer
x = 605,281,245.90
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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.