Finding the Fourth Proportional to 18,201,643.20, 27,302,464.80 and 15,331,861.80
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Solution
The fourth proportional to 18,201,643.20, 27,302,464.80 and 15,331,861.80 is: 22,997,792.70
Step by Step Solution
- Step 1: Write the proportion equation
18,201,643.20 : 27,302,464.80 = 15,331,861.80 : x - Step 2: Convert to fraction form
18,201,643.20/27,302,464.80 = 15,331,861.80/x - Step 3: Cross multiply
18,201,643.20x = 27,302,464.80 × 15,331,861.80 - Step 4: Simplify right side
18,201,643.20x = 418,597,617,112,964.69 - Step 5: Solve for x
x = 418,597,617,112,964.69/18,201,643.20 - Step 6: Final answer
x = 22,997,792.70
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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.