Finding the Fourth Proportional to 3,936,957.99, 5,433,002.06 and 2,126,121.99
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Solution
The fourth proportional to 3,936,957.99, 5,433,002.06 and 2,126,121.99 is: 2,934,048.36
Step by Step Solution
- Step 1: Write the proportion equation
3,936,957.99 : 5,433,002.06 = 2,126,121.99 : x - Step 2: Convert to fraction form
3,936,957.99/5,433,002.06 = 2,126,121.99/x - Step 3: Cross multiply
3,936,957.99x = 5,433,002.06 × 2,126,121.99 - Step 4: Simplify right side
3,936,957.99x = 11,551,225,140,850.69 - Step 5: Solve for x
x = 11,551,225,140,850.69/3,936,957.99 - Step 6: Final answer
x = 2,934,048.36
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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.