Finding the Fourth Proportional to 8,722,716.32, 12,037,080.72 and 4,855,138.08
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Solution
The fourth proportional to 8,722,716.32, 12,037,080.72 and 4,855,138.08 is: 6,699,941.49
Step by Step Solution
- Step 1: Write the proportion equation
8,722,716.32 : 12,037,080.72 = 4,855,138.08 : x - Step 2: Convert to fraction form
8,722,716.32/12,037,080.72 = 4,855,138.08/x - Step 3: Cross multiply
8,722,716.32x = 12,037,080.72 × 4,855,138.08 - Step 4: Simplify right side
8,722,716.32x = 58,441,688,975,705.82 - Step 5: Solve for x
x = 58,441,688,975,705.82/8,722,716.32 - Step 6: Final answer
x = 6,699,941.49
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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.