Finding the Fourth Proportional to 3,456,545.63, 4,768,702.56 and 2,165,137.79
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Solution
The fourth proportional to 3,456,545.63, 4,768,702.56 and 2,165,137.79 is: 2,987,056.79
Step by Step Solution
- Step 1: Write the proportion equation
3,456,545.63 : 4,768,702.56 = 2,165,137.79 : x - Step 2: Convert to fraction form
3,456,545.63/4,768,702.56 = 2,165,137.79/x - Step 3: Cross multiply
3,456,545.63x = 4,768,702.56 × 2,165,137.79 - Step 4: Simplify right side
3,456,545.63x = 10,324,898,111,100.05 - Step 5: Solve for x
x = 10,324,898,111,100.05/3,456,545.63 - Step 6: Final answer
x = 2,987,056.79
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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.