Finding the Fourth Proportional to 66,389,645.21, 91,624,241.64 and 40,282,114.01
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Solution
The fourth proportional to 66,389,645.21, 91,624,241.64 and 40,282,114.01 is: 55,593,280.19
Step by Step Solution
- Step 1: Write the proportion equation
66,389,645.21 : 91,624,241.64 = 40,282,114.01 : x - Step 2: Convert to fraction form
66,389,645.21/91,624,241.64 = 40,282,114.01/x - Step 3: Cross multiply
66,389,645.21x = 91,624,241.64 × 40,282,114.01 - Step 4: Simplify right side
66,389,645.21x = 3,690,818,147,822,269 - Step 5: Solve for x
x = 3,690,818,147,822,269/66,389,645.21 - Step 6: Final answer
x = 55,593,280.19
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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.