Finding the Fourth Proportional to 4,480,129.20, 6,720,193.80 and 4,018,234.80
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Solution
The fourth proportional to 4,480,129.20, 6,720,193.80 and 4,018,234.80 is: 6,027,352.20
Step by Step Solution
- Step 1: Write the proportion equation
4,480,129.20 : 6,720,193.80 = 4,018,234.80 : x - Step 2: Convert to fraction form
4,480,129.20/6,720,193.80 = 4,018,234.80/x - Step 3: Cross multiply
4,480,129.20x = 6,720,193.80 × 4,018,234.80 - Step 4: Simplify right side
4,480,129.20x = 27,003,316,589,904.24 - Step 5: Solve for x
x = 27,003,316,589,904.24/4,480,129.20 - Step 6: Final answer
x = 6,027,352.20
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1.5x scale
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.