Finding the Fourth Proportional to 19,585,926.40, 29,383,555.20 and 9,480,236.80
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Solution
The fourth proportional to 19,585,926.40, 29,383,555.20 and 9,480,236.80 is: 14,222,613.50
Step by Step Solution
- Step 1: Write the proportion equation
19,585,926.40 : 29,383,555.20 = 9,480,236.80 : x - Step 2: Convert to fraction form
19,585,926.40/29,383,555.20 = 9,480,236.80/x - Step 3: Cross multiply
19,585,926.40x = 29,383,555.20 × 9,480,236.80 - Step 4: Simplify right side
19,585,926.40x = 278,563,061,321,871.38 - Step 5: Solve for x
x = 278,563,061,321,871.38/19,585,926.40 - Step 6: Final answer
x = 14,222,613.50
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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.