Finding the Fourth Proportional to 3,825,726.94, 5,279,698.65 and 2,171,989.99
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Solution
The fourth proportional to 3,825,726.94, 5,279,698.65 and 2,171,989.99 is: 2,997,457.16
Step by Step Solution
- Step 1: Write the proportion equation
3,825,726.94 : 5,279,698.65 = 2,171,989.99 : x - Step 2: Convert to fraction form
3,825,726.94/5,279,698.65 = 2,171,989.99/x - Step 3: Cross multiply
3,825,726.94x = 5,279,698.65 × 2,171,989.99 - Step 4: Simplify right side
3,825,726.94x = 11,467,452,618,016.52 - Step 5: Solve for x
x = 11,467,452,618,016.52/3,825,726.94 - Step 6: Final answer
x = 2,997,457.16
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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.