Finding the Fourth Proportional to 4,142,120.40, 6,207,348.60 and 3,290,648.40
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Solution
The fourth proportional to 4,142,120.40, 6,207,348.60 and 3,290,648.40 is: 4,931,339.45
Step by Step Solution
- Step 1: Write the proportion equation
4,142,120.40 : 6,207,348.60 = 3,290,648.40 : x - Step 2: Convert to fraction form
4,142,120.40/6,207,348.60 = 3,290,648.40/x - Step 3: Cross multiply
4,142,120.40x = 6,207,348.60 × 3,290,648.40 - Step 4: Simplify right side
4,142,120.40x = 20,426,201,738,832.24 - Step 5: Solve for x
x = 20,426,201,738,832.24/4,142,120.40 - Step 6: Final answer
x = 4,931,339.45
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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.