Finding the Fourth Proportional to 291,564,481.50, 402,367,382.55 and 161,192,687.58
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Solution
The fourth proportional to 291,564,481.50, 402,367,382.55 and 161,192,687.58 is: 222,450,551.78
Step by Step Solution
- Step 1: Write the proportion equation
291,564,481.50 : 402,367,382.55 = 161,192,687.58 : x - Step 2: Convert to fraction form
291,564,481.50/402,367,382.55 = 161,192,687.58/x - Step 3: Cross multiply
291,564,481.50x = 402,367,382.55 × 161,192,687.58 - Step 4: Simplify right side
291,564,481.50x = 64,858,679,787,764,504 - Step 5: Solve for x
x = 64,858,679,787,764,504/291,564,481.50 - Step 6: Final answer
x = 222,450,551.78
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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.