Finding the Fourth Proportional to 8,315,257.49, 12,472,916.87 and 2,557,951.23
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Solution
The fourth proportional to 8,315,257.49, 12,472,916.87 and 2,557,951.23 is: 3,836,936.27
Step by Step Solution
- Step 1: Write the proportion equation
8,315,257.49 : 12,472,916.87 = 2,557,951.23 : x - Step 2: Convert to fraction form
8,315,257.49/12,472,916.87 = 2,557,951.23/x - Step 3: Cross multiply
8,315,257.49x = 12,472,916.87 × 2,557,951.23 - Step 4: Simplify right side
8,315,257.49x = 31,905,113,049,304.25 - Step 5: Solve for x
x = 31,905,113,049,304.25/8,315,257.49 - Step 6: Final answer
x = 3,836,936.27
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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.