Finding the Fourth Proportional to 3,999,617.09, 5,519,432.19 and 2,164,035.09
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Solution
The fourth proportional to 3,999,617.09, 5,519,432.19 and 2,164,035.09 is: 2,986,347.11
Step by Step Solution
- Step 1: Write the proportion equation
3,999,617.09 : 5,519,432.19 = 2,164,035.09 : x - Step 2: Convert to fraction form
3,999,617.09/5,519,432.19 = 2,164,035.09/x - Step 3: Cross multiply
3,999,617.09x = 5,519,432.19 × 2,164,035.09 - Step 4: Simplify right side
3,999,617.09x = 11,944,244,936,035.55 - Step 5: Solve for x
x = 11,944,244,936,035.55/3,999,617.09 - Step 6: Final answer
x = 2,986,347.11
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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.