Finding the Fourth Proportional to 587,247,611.49, 810,405,919.64 and 319,321,524.08
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Solution
The fourth proportional to 587,247,611.49, 810,405,919.64 and 319,321,524.08 is: 440,665,995.61
Step by Step Solution
- Step 1: Write the proportion equation
587,247,611.49 : 810,405,919.64 = 319,321,524.08 : x - Step 2: Convert to fraction form
587,247,611.49/810,405,919.64 = 319,321,524.08/x - Step 3: Cross multiply
587,247,611.49x = 810,405,919.64 × 319,321,524.08 - Step 4: Simplify right side
587,247,611.49x = 258,780,053,385,723,136 - Step 5: Solve for x
x = 258,780,053,385,723,136/587,247,611.49 - Step 6: Final answer
x = 440,665,995.61
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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.