Finding the Fourth Proportional to 4,078,216.20, 6,121,989.90 and 2,396,267.40
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Solution
The fourth proportional to 4,078,216.20, 6,121,989.90 and 2,396,267.40 is: 3,597,142.50
Step by Step Solution
- Step 1: Write the proportion equation
4,078,216.20 : 6,121,989.90 = 2,396,267.40 : x - Step 2: Convert to fraction form
4,078,216.20/6,121,989.90 = 2,396,267.40/x - Step 3: Cross multiply
4,078,216.20x = 6,121,989.90 × 2,396,267.40 - Step 4: Simplify right side
4,078,216.20x = 14,669,924,820,499.26 - Step 5: Solve for x
x = 14,669,924,820,499.26/4,078,216.20 - Step 6: Final answer
x = 3,597,142.50
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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.