Finding the Fourth Proportional to 18,121,205.70, 27,181,808.55 and 17,281,397.70
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Solution
The fourth proportional to 18,121,205.70, 27,181,808.55 and 17,281,397.70 is: 25,922,096.55
Step by Step Solution
- Step 1: Write the proportion equation
18,121,205.70 : 27,181,808.55 = 17,281,397.70 : x - Step 2: Convert to fraction form
18,121,205.70/27,181,808.55 = 17,281,397.70/x - Step 3: Cross multiply
18,121,205.70x = 27,181,808.55 × 17,281,397.70 - Step 4: Simplify right side
18,121,205.70x = 469,739,643,757,810.31 - Step 5: Solve for x
x = 469,739,643,757,810.31/18,121,205.70 - Step 6: Final answer
x = 25,922,096.55
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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.