Finding the Fourth Proportional to 13,737,042.15, 18,957,155.46 and 7,542,490.09
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Solution
The fourth proportional to 13,737,042.15, 18,957,155.46 and 7,542,490.09 is: 10,408,656.80
Step by Step Solution
- Step 1: Write the proportion equation
13,737,042.15 : 18,957,155.46 = 7,542,490.09 : x - Step 2: Convert to fraction form
13,737,042.15/18,957,155.46 = 7,542,490.09/x - Step 3: Cross multiply
13,737,042.15x = 18,957,155.46 × 7,542,490.09 - Step 4: Simplify right side
13,737,042.15x = 142,984,157,191,639.41 - Step 5: Solve for x
x = 142,984,157,191,639.41/13,737,042.15 - Step 6: Final answer
x = 10,408,656.80
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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.