Finding the Fourth Proportional to 3,416,540.80, 5,124,811.20 and 2,159,939.20
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Solution
The fourth proportional to 3,416,540.80, 5,124,811.20 and 2,159,939.20 is: 3,239,908.80
Step by Step Solution
- Step 1: Write the proportion equation
3,416,540.80 : 5,124,811.20 = 2,159,939.20 : x - Step 2: Convert to fraction form
3,416,540.80/5,124,811.20 = 2,159,939.20/x - Step 3: Cross multiply
3,416,540.80x = 5,124,811.20 × 2,159,939.20 - Step 4: Simplify right side
3,416,540.80x = 11,069,280,603,479.04 - Step 5: Solve for x
x = 11,069,280,603,479.04/3,416,540.80 - Step 6: Final answer
x = 3,239,908.80
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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.