Finding the Fourth Proportional to 8,214,419.12, 12,319,008.21 and 2,821,769.19
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Solution
The fourth proportional to 8,214,419.12, 12,319,008.21 and 2,821,769.19 is: 4,231,753.62
Step by Step Solution
- Step 1: Write the proportion equation
8,214,419.12 : 12,319,008.21 = 2,821,769.19 : x - Step 2: Convert to fraction form
8,214,419.12/12,319,008.21 = 2,821,769.19/x - Step 3: Cross multiply
8,214,419.12x = 12,319,008.21 × 2,821,769.19 - Step 4: Simplify right side
8,214,419.12x = 34,761,397,818,335.05 - Step 5: Solve for x
x = 34,761,397,818,335.05/8,214,419.12 - Step 6: Final answer
x = 4,231,753.62
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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.