Finding the Fourth Proportional to 7,646,648.40, 11,451,310.20 and 3,652,894.80
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Solution
The fourth proportional to 7,646,648.40, 11,451,310.20 and 3,652,894.80 is: 5,470,426.95
Step by Step Solution
- Step 1: Write the proportion equation
7,646,648.40 : 11,451,310.20 = 3,652,894.80 : x - Step 2: Convert to fraction form
7,646,648.40/11,451,310.20 = 3,652,894.80/x - Step 3: Cross multiply
7,646,648.40x = 11,451,310.20 × 3,652,894.80 - Step 4: Simplify right side
7,646,648.40x = 41,830,431,482,766.95 - Step 5: Solve for x
x = 41,830,431,482,766.95/7,646,648.40 - Step 6: Final answer
x = 5,470,426.95
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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.