Finding the Fourth Proportional to 27,213,321.20, 40,763,994.60 and 13,757,730.80
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Solution
The fourth proportional to 27,213,321.20, 40,763,994.60 and 13,757,730.80 is: 20,608,291.80
Step by Step Solution
- Step 1: Write the proportion equation
27,213,321.20 : 40,763,994.60 = 13,757,730.80 : x - Step 2: Convert to fraction form
27,213,321.20/40,763,994.60 = 13,757,730.80/x - Step 3: Cross multiply
27,213,321.20x = 40,763,994.60 × 13,757,730.80 - Step 4: Simplify right side
27,213,321.20x = 560,820,064,039,453.75 - Step 5: Solve for x
x = 560,820,064,039,453.75/27,213,321.20 - Step 6: Final answer
x = 20,608,291.80
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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.