Finding the Fourth Proportional to 18,395,578.20, 27,569,747.70 and 14,114,525.70
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Solution
The fourth proportional to 18,395,578.20, 27,569,747.70 and 14,114,525.70 is: 21,153,665.75
Step by Step Solution
- Step 1: Write the proportion equation
18,395,578.20 : 27,569,747.70 = 14,114,525.70 : x - Step 2: Convert to fraction form
18,395,578.20/27,569,747.70 = 14,114,525.70/x - Step 3: Cross multiply
18,395,578.20x = 27,569,747.70 × 14,114,525.70 - Step 4: Simplify right side
18,395,578.20x = 389,133,912,454,165.88 - Step 5: Solve for x
x = 389,133,912,454,165.88/18,395,578.20 - Step 6: Final answer
x = 21,153,665.75
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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.