Finding the Fourth Proportional to 3,798,861.93, 5,242,428.54 and 2,079,981.99
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Solution
The fourth proportional to 3,798,861.93, 5,242,428.54 and 2,079,981.99 is: 2,870,374.64
Step by Step Solution
- Step 1: Write the proportion equation
3,798,861.93 : 5,242,428.54 = 2,079,981.99 : x - Step 2: Convert to fraction form
3,798,861.93/5,242,428.54 = 2,079,981.99/x - Step 3: Cross multiply
3,798,861.93x = 5,242,428.54 × 2,079,981.99 - Step 4: Simplify right side
3,798,861.93x = 10,904,156,947,061.99 - Step 5: Solve for x
x = 10,904,156,947,061.99/3,798,861.93 - Step 6: Final answer
x = 2,870,374.64
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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.