Finding the Fourth Proportional to 6,420,651.84, 8,860,497.39 and 3,519,980.42
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Solution
The fourth proportional to 6,420,651.84, 8,860,497.39 and 3,519,980.42 is: 4,857,571.79
Step by Step Solution
- Step 1: Write the proportion equation
6,420,651.84 : 8,860,497.39 = 3,519,980.42 : x - Step 2: Convert to fraction form
6,420,651.84/8,860,497.39 = 3,519,980.42/x - Step 3: Cross multiply
6,420,651.84x = 8,860,497.39 × 3,519,980.42 - Step 4: Simplify right side
6,420,651.84x = 31,188,777,279,958.62 - Step 5: Solve for x
x = 31,188,777,279,958.62/6,420,651.84 - Step 6: Final answer
x = 4,857,571.79
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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.