Finding the Fourth Proportional to 2,180,676.18, 3,009,367.17 and 1,213,816.98
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Solution
The fourth proportional to 2,180,676.18, 3,009,367.17 and 1,213,816.98 is: 1,675,086.38
Step by Step Solution
- Step 1: Write the proportion equation
2,180,676.18 : 3,009,367.17 = 1,213,816.98 : x - Step 2: Convert to fraction form
2,180,676.18/3,009,367.17 = 1,213,816.98/x - Step 3: Cross multiply
2,180,676.18x = 3,009,367.17 × 1,213,816.98 - Step 4: Simplify right side
2,180,676.18x = 3,652,820,970,000.55 - Step 5: Solve for x
x = 3,652,820,970,000.55/2,180,676.18 - Step 6: Final answer
x = 1,675,086.38
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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.