Finding the Fourth Proportional to 18,569,731.20, 27,854,596.80 and 14,318,203.20
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Solution
The fourth proportional to 18,569,731.20, 27,854,596.80 and 14,318,203.20 is: 21,477,304.80
Step by Step Solution
- Step 1: Write the proportion equation
18,569,731.20 : 27,854,596.80 = 14,318,203.20 : x - Step 2: Convert to fraction form
18,569,731.20/27,854,596.80 = 14,318,203.20/x - Step 3: Cross multiply
18,569,731.20x = 27,854,596.80 × 14,318,203.20 - Step 4: Simplify right side
18,569,731.20x = 398,827,777,036,469.75 - Step 5: Solve for x
x = 398,827,777,036,469.75/18,569,731.20 - Step 6: Final answer
x = 21,477,304.80
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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.