Finding the Fourth Proportional to 51,504,718.40, 71,082,690.84 and 30,889,505.60
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Solution
The fourth proportional to 51,504,718.40, 71,082,690.84 and 30,889,505.60 is: 42,631,223.80
Step by Step Solution
- Step 1: Write the proportion equation
51,504,718.40 : 71,082,690.84 = 30,889,505.60 : x - Step 2: Convert to fraction form
51,504,718.40/71,082,690.84 = 30,889,505.60/x - Step 3: Cross multiply
51,504,718.40x = 71,082,690.84 × 30,889,505.60 - Step 4: Simplify right side
51,504,718.40x = 2,195,709,176,765,249 - Step 5: Solve for x
x = 2,195,709,176,765,249/51,504,718.40 - Step 6: Final answer
x = 42,631,223.80
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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.