Finding the Fourth Proportional to 18,104,168.20, 27,156,252.30 and 15,765,827.80
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Solution
The fourth proportional to 18,104,168.20, 27,156,252.30 and 15,765,827.80 is: 23,648,741.70
Step by Step Solution
- Step 1: Write the proportion equation
18,104,168.20 : 27,156,252.30 = 15,765,827.80 : x - Step 2: Convert to fraction form
18,104,168.20/27,156,252.30 = 15,765,827.80/x - Step 3: Cross multiply
18,104,168.20x = 27,156,252.30 × 15,765,827.80 - Step 4: Simplify right side
18,104,168.20x = 428,140,797,455,154 - Step 5: Solve for x
x = 428,140,797,455,154/18,104,168.20 - Step 6: Final answer
x = 23,648,741.70
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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.