Finding the Fourth Proportional to 3,747,173.13, 5,168,940.40 and 2,255,986.69
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Solution
The fourth proportional to 3,747,173.13, 5,168,940.40 and 2,255,986.69 is: 3,111,962.09
Step by Step Solution
- Step 1: Write the proportion equation
3,747,173.13 : 5,168,940.40 = 2,255,986.69 : x - Step 2: Convert to fraction form
3,747,173.13/5,168,940.40 = 2,255,986.69/x - Step 3: Cross multiply
3,747,173.13x = 5,168,940.40 × 2,255,986.69 - Step 4: Simplify right side
3,747,173.13x = 11,661,060,743,803.28 - Step 5: Solve for x
x = 11,661,060,743,803.28/3,747,173.13 - Step 6: Final answer
x = 3,111,962.09
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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.