Finding the Fourth Proportional to 28,079,920.24, 42,124,406.37 and 8,649,137.21
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Solution
The fourth proportional to 28,079,920.24, 42,124,406.37 and 8,649,137.21 is: 12,975,099.91
Step by Step Solution
- Step 1: Write the proportion equation
28,079,920.24 : 42,124,406.37 = 8,649,137.21 : x - Step 2: Convert to fraction form
28,079,920.24/42,124,406.37 = 8,649,137.21/x - Step 3: Cross multiply
28,079,920.24x = 42,124,406.37 × 8,649,137.21 - Step 4: Simplify right side
28,079,920.24x = 364,339,770,696,592.38 - Step 5: Solve for x
x = 364,339,770,696,592.38/28,079,920.24 - Step 6: Final answer
x = 12,975,099.91
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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.