Finding the Fourth Proportional to 3,639,889.68, 5,023,199.68 and 2,008,402.88
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Solution
The fourth proportional to 3,639,889.68, 5,023,199.68 and 2,008,402.88 is: 2,771,679.80
Step by Step Solution
- Step 1: Write the proportion equation
3,639,889.68 : 5,023,199.68 = 2,008,402.88 : x - Step 2: Convert to fraction form
3,639,889.68/5,023,199.68 = 2,008,402.88/x - Step 3: Cross multiply
3,639,889.68x = 5,023,199.68 × 2,008,402.88 - Step 4: Simplify right side
3,639,889.68x = 10,088,608,704,127.08 - Step 5: Solve for x
x = 10,088,608,704,127.08/3,639,889.68 - Step 6: Final answer
x = 2,771,679.80
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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.