Finding the Fourth Proportional to 2,018,993.76, 2,786,112.96 and 1,203,178.80
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Solution
The fourth proportional to 2,018,993.76, 2,786,112.96 and 1,203,178.80 is: 1,660,328.09
Step by Step Solution
- Step 1: Write the proportion equation
2,018,993.76 : 2,786,112.96 = 1,203,178.80 : x - Step 2: Convert to fraction form
2,018,993.76/2,786,112.96 = 1,203,178.80/x - Step 3: Cross multiply
2,018,993.76x = 2,786,112.96 × 1,203,178.80 - Step 4: Simplify right side
2,018,993.76x = 3,352,192,047,877.25 - Step 5: Solve for x
x = 3,352,192,047,877.25/2,018,993.76 - Step 6: Final answer
x = 1,660,328.09
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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.