Finding the Fourth Proportional to 4,787,376.40, 7,186,313.40 and 2,992,286.80
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Solution
The fourth proportional to 4,787,376.40, 7,186,313.40 and 2,992,286.80 is: 4,491,710.89
Step by Step Solution
- Step 1: Write the proportion equation
4,787,376.40 : 7,186,313.40 = 2,992,286.80 : x - Step 2: Convert to fraction form
4,787,376.40/7,186,313.40 = 2,992,286.80/x - Step 3: Cross multiply
4,787,376.40x = 7,186,313.40 × 2,992,286.80 - Step 4: Simplify right side
4,787,376.40x = 21,503,510,727,483.12 - Step 5: Solve for x
x = 21,503,510,727,483.12/4,787,376.40 - Step 6: Final answer
x = 4,491,710.89
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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.