Finding the Fourth Proportional to 2,120,133.13, 3,172,174.50 and 1,256,031.99
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Solution
The fourth proportional to 2,120,133.13, 3,172,174.50 and 1,256,031.99 is: 1,879,293.62
Step by Step Solution
- Step 1: Write the proportion equation
2,120,133.13 : 3,172,174.50 = 1,256,031.99 : x - Step 2: Convert to fraction form
2,120,133.13/3,172,174.50 = 1,256,031.99/x - Step 3: Cross multiply
2,120,133.13x = 3,172,174.50 × 1,256,031.99 - Step 4: Simplify right side
2,120,133.13x = 3,984,352,649,862.26 - Step 5: Solve for x
x = 3,984,352,649,862.26/2,120,133.13 - Step 6: Final answer
x = 1,879,293.62
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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.