Finding the Fourth Proportional to 98,415,163.80, 147,622,745.70 and 66,166,536.60
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Solution
The fourth proportional to 98,415,163.80, 147,622,745.70 and 66,166,536.60 is: 99,249,804.90
Step by Step Solution
- Step 1: Write the proportion equation
98,415,163.80 : 147,622,745.70 = 66,166,536.60 : x - Step 2: Convert to fraction form
98,415,163.80/147,622,745.70 = 66,166,536.60/x - Step 3: Cross multiply
98,415,163.80x = 147,622,745.70 × 66,166,536.60 - Step 4: Simplify right side
98,415,163.80x = 9,767,685,806,351,542 - Step 5: Solve for x
x = 9,767,685,806,351,542/98,415,163.80 - Step 6: Final answer
x = 99,249,804.90
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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.