Finding the Fourth Proportional to 2,189,837.20, 3,000,026.81 and 2,107,964.29
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Solution
The fourth proportional to 2,189,837.20, 3,000,026.81 and 2,107,964.29 is: 2,887,862.80
Step by Step Solution
- Step 1: Write the proportion equation
2,189,837.20 : 3,000,026.81 = 2,107,964.29 : x - Step 2: Convert to fraction form
2,189,837.20/3,000,026.81 = 2,107,964.29/x - Step 3: Cross multiply
2,189,837.20x = 3,000,026.81 × 2,107,964.29 - Step 4: Simplify right side
2,189,837.20x = 6,323,949,389,792.53 - Step 5: Solve for x
x = 6,323,949,389,792.53/2,189,837.20 - Step 6: Final answer
x = 2,887,862.80
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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.