Finding the Fourth Proportional to 7,636,405.68, 10,538,145.36 and 4,198,616.64
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Solution
The fourth proportional to 7,636,405.68, 10,538,145.36 and 4,198,616.64 is: 5,794,039.02
Step by Step Solution
- Step 1: Write the proportion equation
7,636,405.68 : 10,538,145.36 = 4,198,616.64 : x - Step 2: Convert to fraction form
7,636,405.68/10,538,145.36 = 4,198,616.64/x - Step 3: Cross multiply
7,636,405.68x = 10,538,145.36 × 4,198,616.64 - Step 4: Simplify right side
7,636,405.68x = 44,245,632,463,234.78 - Step 5: Solve for x
x = 44,245,632,463,234.78/7,636,405.68 - Step 6: Final answer
x = 5,794,039.02
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1.5x scale
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.