Finding the Fourth Proportional to 8,614,742.23, 11,888,422.82 and 4,747,402.09
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Solution
The fourth proportional to 8,614,742.23, 11,888,422.82 and 4,747,402.09 is: 6,551,458.17
Step by Step Solution
- Step 1: Write the proportion equation
8,614,742.23 : 11,888,422.82 = 4,747,402.09 : x - Step 2: Convert to fraction form
8,614,742.23/11,888,422.82 = 4,747,402.09/x - Step 3: Cross multiply
8,614,742.23x = 11,888,422.82 × 4,747,402.09 - Step 4: Simplify right side
8,614,742.23x = 56,439,123,342,471.70 - Step 5: Solve for x
x = 56,439,123,342,471.70/8,614,742.23 - Step 6: Final answer
x = 6,551,458.17
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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.