Finding the Fourth Proportional to 7,259,842.51, 10,889,689.45 and 1,868,471.98
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Solution
The fourth proportional to 7,259,842.51, 10,889,689.45 and 1,868,471.98 is: 2,802,688.84
Step by Step Solution
- Step 1: Write the proportion equation
7,259,842.51 : 10,889,689.45 = 1,868,471.98 : x - Step 2: Convert to fraction form
7,259,842.51/10,889,689.45 = 1,868,471.98/x - Step 3: Cross multiply
7,259,842.51x = 10,889,689.45 × 1,868,471.98 - Step 4: Simplify right side
7,259,842.51x = 20,347,079,608,226.61 - Step 5: Solve for x
x = 20,347,079,608,226.61/7,259,842.51 - Step 6: Final answer
x = 2,802,688.84
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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.