Finding the Fourth Proportional to 531,473,163.40, 797,209,745.10 and 508,514,912.20
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Solution
The fourth proportional to 531,473,163.40, 797,209,745.10 and 508,514,912.20 is: 762,772,368.30
Step by Step Solution
- Step 1: Write the proportion equation
531,473,163.40 : 797,209,745.10 = 508,514,912.20 : x - Step 2: Convert to fraction form
531,473,163.40/797,209,745.10 = 508,514,912.20/x - Step 3: Cross multiply
531,473,163.40x = 797,209,745.10 × 508,514,912.20 - Step 4: Simplify right side
531,473,163.40x = 405,393,043,534,510,912 - Step 5: Solve for x
x = 405,393,043,534,510,912/531,473,163.40 - Step 6: Final answer
x = 762,772,368.30
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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.