Finding the Fourth Proportional to 422,409,075.12, 582,951,462.84 and 236,770,138.80
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Solution
The fourth proportional to 422,409,075.12, 582,951,462.84 and 236,770,138.80 is: 326,757,891.58
Step by Step Solution
- Step 1: Write the proportion equation
422,409,075.12 : 582,951,462.84 = 236,770,138.80 : x - Step 2: Convert to fraction form
422,409,075.12/582,951,462.84 = 236,770,138.80/x - Step 3: Cross multiply
422,409,075.12x = 582,951,462.84 × 236,770,138.80 - Step 4: Simplify right side
422,409,075.12x = 138,025,498,770,289,856 - Step 5: Solve for x
x = 138,025,498,770,289,856/422,409,075.12 - Step 6: Final answer
x = 326,757,891.58
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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.