Finding the Fourth Proportional to 8,201,298.68, 11,219,434.72 and 8,166,755.44
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Solution
The fourth proportional to 8,201,298.68, 11,219,434.72 and 8,166,755.44 is: 11,172,179.32
Step by Step Solution
- Step 1: Write the proportion equation
8,201,298.68 : 11,219,434.72 = 8,166,755.44 : x - Step 2: Convert to fraction form
8,201,298.68/11,219,434.72 = 8,166,755.44/x - Step 3: Cross multiply
8,201,298.68x = 11,219,434.72 × 8,166,755.44 - Step 4: Simplify right side
8,201,298.68x = 91,626,379,533,284.89 - Step 5: Solve for x
x = 91,626,379,533,284.89/8,201,298.68 - Step 6: Final answer
x = 11,172,179.32
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.