Finding the Fourth Proportional to 8,455,979.68, 12,683,516.64 and 2,990,695.84
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Solution
The fourth proportional to 8,455,979.68, 12,683,516.64 and 2,990,695.84 is: 4,485,883.59
Step by Step Solution
- Step 1: Write the proportion equation
8,455,979.68 : 12,683,516.64 = 2,990,695.84 : x - Step 2: Convert to fraction form
8,455,979.68/12,683,516.64 = 2,990,695.84/x - Step 3: Cross multiply
8,455,979.68x = 12,683,516.64 × 2,990,695.84 - Step 4: Simplify right side
8,455,979.68x = 37,932,540,451,818.78 - Step 5: Solve for x
x = 37,932,540,451,818.78/8,455,979.68 - Step 6: Final answer
x = 4,485,883.59
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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.