Finding the Fourth Proportional to 128,317,405.99, 192,399,243.81 and 40,841,137.87
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Solution
The fourth proportional to 128,317,405.99, 192,399,243.81 and 40,841,137.87 is: 61,237,241.99
Step by Step Solution
- Step 1: Write the proportion equation
128,317,405.99 : 192,399,243.81 = 40,841,137.87 : x - Step 2: Convert to fraction form
128,317,405.99/192,399,243.81 = 40,841,137.87/x - Step 3: Cross multiply
128,317,405.99x = 192,399,243.81 × 40,841,137.87 - Step 4: Simplify right side
128,317,405.99x = 7,857,804,042,527,954 - Step 5: Solve for x
x = 7,857,804,042,527,954/128,317,405.99 - Step 6: Final answer
x = 61,237,241.99
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.