Finding the Fourth Proportional to 76,403,232.80, 114,352,906.80 and 53,728,416.80
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Solution
The fourth proportional to 76,403,232.80, 114,352,906.80 and 53,728,416.80 is: 80,415,453.82
Step by Step Solution
- Step 1: Write the proportion equation
76,403,232.80 : 114,352,906.80 = 53,728,416.80 : x - Step 2: Convert to fraction form
76,403,232.80/114,352,906.80 = 53,728,416.80/x - Step 3: Cross multiply
76,403,232.80x = 114,352,906.80 × 53,728,416.80 - Step 4: Simplify right side
76,403,232.80x = 6,144,000,638,841,954 - Step 5: Solve for x
x = 6,144,000,638,841,954/76,403,232.80 - Step 6: Final answer
x = 80,415,453.82
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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.