Finding the Fourth Proportional to 2,128,163.10, 3,186,995.85 and 1,414,326.30
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Solution
The fourth proportional to 2,128,163.10, 3,186,995.85 and 1,414,326.30 is: 2,118,001.22
Step by Step Solution
- Step 1: Write the proportion equation
2,128,163.10 : 3,186,995.85 = 1,414,326.30 : x - Step 2: Convert to fraction form
2,128,163.10/3,186,995.85 = 1,414,326.30/x - Step 3: Cross multiply
2,128,163.10x = 3,186,995.85 × 1,414,326.30 - Step 4: Simplify right side
2,128,163.10x = 4,507,452,048,645.86 - Step 5: Solve for x
x = 4,507,452,048,645.86/2,128,163.10 - Step 6: Final answer
x = 2,118,001.22
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.