Finding the Fourth Proportional to 2,920,011.68, 4,029,217.92 and 1,630,687.68
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Solution
The fourth proportional to 2,920,011.68, 4,029,217.92 and 1,630,687.68 is: 2,250,126.62
Step by Step Solution
- Step 1: Write the proportion equation
2,920,011.68 : 4,029,217.92 = 1,630,687.68 : x - Step 2: Convert to fraction form
2,920,011.68/4,029,217.92 = 1,630,687.68/x - Step 3: Cross multiply
2,920,011.68x = 4,029,217.92 × 1,630,687.68 - Step 4: Simplify right side
2,920,011.68x = 6,570,396,022,179.23 - Step 5: Solve for x
x = 6,570,396,022,179.23/2,920,011.68 - Step 6: Final answer
x = 2,250,126.62
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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.