Finding the Fourth Proportional to 8,861,372.40, 12,228,899.24 and 4,994,012.84
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Solution
The fourth proportional to 8,861,372.40, 12,228,899.24 and 4,994,012.84 is: 6,891,853.44
Step by Step Solution
- Step 1: Write the proportion equation
8,861,372.40 : 12,228,899.24 = 4,994,012.84 : x - Step 2: Convert to fraction form
8,861,372.40/12,228,899.24 = 4,994,012.84/x - Step 3: Cross multiply
8,861,372.40x = 12,228,899.24 × 4,994,012.84 - Step 4: Simplify right side
8,861,372.40x = 61,071,279,823,626.24 - Step 5: Solve for x
x = 61,071,279,823,626.24/8,861,372.40 - Step 6: Final answer
x = 6,891,853.44
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.