Finding the Fourth Proportional to 66,087,072.96, 91,202,621.98 and 39,629,734.28
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Solution
The fourth proportional to 66,087,072.96, 91,202,621.98 and 39,629,734.28 is: 54,690,509.25
Step by Step Solution
- Step 1: Write the proportion equation
66,087,072.96 : 91,202,621.98 = 39,629,734.28 : x - Step 2: Convert to fraction form
66,087,072.96/91,202,621.98 = 39,629,734.28/x - Step 3: Cross multiply
66,087,072.96x = 91,202,621.98 × 39,629,734.28 - Step 4: Simplify right side
66,087,072.96x = 3,614,335,674,706,687.50 - Step 5: Solve for x
x = 3,614,335,674,706,687.50/66,087,072.96 - Step 6: Final answer
x = 54,690,509.25
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.