Finding the Fourth Proportional to 8,859,175.20, 13,288,762.80 and 8,691,213.60
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Solution
The fourth proportional to 8,859,175.20, 13,288,762.80 and 8,691,213.60 is: 13,036,820.40
Step by Step Solution
- Step 1: Write the proportion equation
8,859,175.20 : 13,288,762.80 = 8,691,213.60 : x - Step 2: Convert to fraction form
8,859,175.20/13,288,762.80 = 8,691,213.60/x - Step 3: Cross multiply
8,859,175.20x = 13,288,762.80 × 8,691,213.60 - Step 4: Simplify right side
8,859,175.20x = 115,495,475,974,534.08 - Step 5: Solve for x
x = 115,495,475,974,534.08/8,859,175.20 - Step 6: Final answer
x = 13,036,820.40
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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.