Finding the Fourth Proportional to 3,582,039.20, 5,373,058.80 and 3,115,479.20
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Solution
The fourth proportional to 3,582,039.20, 5,373,058.80 and 3,115,479.20 is: 4,673,218.80
Step by Step Solution
- Step 1: Write the proportion equation
3,582,039.20 : 5,373,058.80 = 3,115,479.20 : x - Step 2: Convert to fraction form
3,582,039.20/5,373,058.80 = 3,115,479.20/x - Step 3: Cross multiply
3,582,039.20x = 5,373,058.80 × 3,115,479.20 - Step 4: Simplify right side
3,582,039.20x = 16,739,652,931,776.96 - Step 5: Solve for x
x = 16,739,652,931,776.96/3,582,039.20 - Step 6: Final answer
x = 4,673,218.80
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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.