Finding the Fourth Proportional to 18,320,900.18, 27,486,668.79 and 7,385,445.70
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Solution
The fourth proportional to 18,320,900.18, 27,486,668.79 and 7,385,445.70 is: 11,080,312.53
Step by Step Solution
- Step 1: Write the proportion equation
18,320,900.18 : 27,486,668.79 = 7,385,445.70 : x - Step 2: Convert to fraction form
18,320,900.18/27,486,668.79 = 7,385,445.70/x - Step 3: Cross multiply
18,320,900.18x = 27,486,668.79 × 7,385,445.70 - Step 4: Simplify right side
18,320,900.18x = 203,001,299,822,429.69 - Step 5: Solve for x
x = 203,001,299,822,429.69/18,320,900.18 - Step 6: Final answer
x = 11,080,312.53
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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.