Finding the Fourth Proportional to 7,146,305.62, 9,861,964.03 and 3,883,120.40
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Solution
The fourth proportional to 7,146,305.62, 9,861,964.03 and 3,883,120.40 is: 5,358,740.00
Step by Step Solution
- Step 1: Write the proportion equation
7,146,305.62 : 9,861,964.03 = 3,883,120.40 : x - Step 2: Convert to fraction form
7,146,305.62/9,861,964.03 = 3,883,120.40/x - Step 3: Cross multiply
7,146,305.62x = 9,861,964.03 × 3,883,120.40 - Step 4: Simplify right side
7,146,305.62x = 38,295,193,738,468.02 - Step 5: Solve for x
x = 38,295,193,738,468.02/7,146,305.62 - Step 6: Final answer
x = 5,358,740.00
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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.