Finding the Fourth Proportional to 18,166,608.98, 27,255,173.22 and 5,387,421.23
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Solution
The fourth proportional to 18,166,608.98, 27,255,173.22 and 5,387,421.23 is: 8,082,691.65
Step by Step Solution
- Step 1: Write the proportion equation
18,166,608.98 : 27,255,173.22 = 5,387,421.23 : x - Step 2: Convert to fraction form
18,166,608.98/27,255,173.22 = 5,387,421.23/x - Step 3: Cross multiply
18,166,608.98x = 27,255,173.22 × 5,387,421.23 - Step 4: Simplify right side
18,166,608.98x = 146,835,098,696,479.56 - Step 5: Solve for x
x = 146,835,098,696,479.56/18,166,608.98 - Step 6: Final answer
x = 8,082,691.65
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1.5x scale
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.