Finding the Fourth Proportional to 8,278,887.60, 12,418,331.40 and 2,214,555.30
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Solution
The fourth proportional to 8,278,887.60, 12,418,331.40 and 2,214,555.30 is: 3,321,832.95
Step by Step Solution
- Step 1: Write the proportion equation
8,278,887.60 : 12,418,331.40 = 2,214,555.30 : x - Step 2: Convert to fraction form
8,278,887.60/12,418,331.40 = 2,214,555.30/x - Step 3: Cross multiply
8,278,887.60x = 12,418,331.40 × 2,214,555.30 - Step 4: Simplify right side
8,278,887.60x = 27,501,081,619,026.42 - Step 5: Solve for x
x = 27,501,081,619,026.42/8,278,887.60 - Step 6: Final answer
x = 3,321,832.95
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Similar ratio
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1.5x scale
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.