Finding the Fourth Proportional to 66,284,107.96, 99,420,027.28 and 31,261,191.75
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Solution
The fourth proportional to 66,284,107.96, 99,420,027.28 and 31,261,191.75 is: 46,888,894.37
Step by Step Solution
- Step 1: Write the proportion equation
66,284,107.96 : 99,420,027.28 = 31,261,191.75 : x - Step 2: Convert to fraction form
66,284,107.96/99,420,027.28 = 31,261,191.75/x - Step 3: Cross multiply
66,284,107.96x = 99,420,027.28 × 31,261,191.75 - Step 4: Simplify right side
66,284,107.96x = 3,107,988,536,590,311 - Step 5: Solve for x
x = 3,107,988,536,590,311/66,284,107.96 - Step 6: Final answer
x = 46,888,894.37
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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.