Finding the Fourth Proportional to 3,957,892.68, 5,461,902.42 and 2,147,056.68
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Solution
The fourth proportional to 3,957,892.68, 5,461,902.42 and 2,147,056.68 is: 2,962,943.93
Step by Step Solution
- Step 1: Write the proportion equation
3,957,892.68 : 5,461,902.42 = 2,147,056.68 : x - Step 2: Convert to fraction form
3,957,892.68/5,461,902.42 = 2,147,056.68/x - Step 3: Cross multiply
3,957,892.68x = 5,461,902.42 × 2,147,056.68 - Step 4: Simplify right side
3,957,892.68x = 11,727,014,076,369.17 - Step 5: Solve for x
x = 11,727,014,076,369.17/3,957,892.68 - Step 6: Final answer
x = 2,962,943.93
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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.