Finding the Fourth Proportional to 12,485,190.48, 18,727,785.84 and 3,509,742.48
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Solution
The fourth proportional to 12,485,190.48, 18,727,785.84 and 3,509,742.48 is: 5,264,613.75
Step by Step Solution
- Step 1: Write the proportion equation
12,485,190.48 : 18,727,785.84 = 3,509,742.48 : x - Step 2: Convert to fraction form
12,485,190.48/18,727,785.84 = 3,509,742.48/x - Step 3: Cross multiply
12,485,190.48x = 18,727,785.84 × 3,509,742.48 - Step 4: Simplify right side
12,485,190.48x = 65,729,705,518,990.48 - Step 5: Solve for x
x = 65,729,705,518,990.48/12,485,190.48 - Step 6: Final answer
x = 5,264,613.75
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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.