Finding the Fourth Proportional to 71,729,174.97, 98,968,697.83 and 40,361,107.78
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Solution
The fourth proportional to 71,729,174.97, 98,968,697.83 and 40,361,107.78 is: 55,688,445.90
Step by Step Solution
- Step 1: Write the proportion equation
71,729,174.97 : 98,968,697.83 = 40,361,107.78 : x - Step 2: Convert to fraction form
71,729,174.97/98,968,697.83 = 40,361,107.78/x - Step 3: Cross multiply
71,729,174.97x = 98,968,697.83 × 40,361,107.78 - Step 4: Simplify right side
71,729,174.97x = 3,994,486,279,910,013 - Step 5: Solve for x
x = 3,994,486,279,910,013/71,729,174.97 - Step 6: Final answer
x = 55,688,445.90
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.