Finding the Fourth Proportional to 8,180,891.12, 11,310,037.08 and 6,140,157.68
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Solution
The fourth proportional to 8,180,891.12, 11,310,037.08 and 6,140,157.68 is: 8,488,734.30
Step by Step Solution
- Step 1: Write the proportion equation
8,180,891.12 : 11,310,037.08 = 6,140,157.68 : x - Step 2: Convert to fraction form
8,180,891.12/11,310,037.08 = 6,140,157.68/x - Step 3: Cross multiply
8,180,891.12x = 11,310,037.08 × 6,140,157.68 - Step 4: Simplify right side
8,180,891.12x = 69,445,411,037,846.77 - Step 5: Solve for x
x = 69,445,411,037,846.77/8,180,891.12 - Step 6: Final answer
x = 8,488,734.30
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Double scale
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1.5x scale
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.