Finding the Fourth Proportional to 3,171,951.65, 4,377,176.00 and 1,721,616.17
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Solution
The fourth proportional to 3,171,951.65, 4,377,176.00 and 1,721,616.17 is: 2,375,766.66
Step by Step Solution
- Step 1: Write the proportion equation
3,171,951.65 : 4,377,176.00 = 1,721,616.17 : x - Step 2: Convert to fraction form
3,171,951.65/4,377,176.00 = 1,721,616.17/x - Step 3: Cross multiply
3,171,951.65x = 4,377,176.00 × 1,721,616.17 - Step 4: Simplify right side
3,171,951.65x = 7,535,816,950,041.96 - Step 5: Solve for x
x = 7,535,816,950,041.96/3,171,951.65 - Step 6: Final answer
x = 2,375,766.66
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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.