Finding the Fourth Proportional to 18,693,023.19, 25,810,042.71 and 12,081,525.75
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Solution
The fourth proportional to 18,693,023.19, 25,810,042.71 and 12,081,525.75 is: 16,681,341.08
Step by Step Solution
- Step 1: Write the proportion equation
18,693,023.19 : 25,810,042.71 = 12,081,525.75 : x - Step 2: Convert to fraction form
18,693,023.19/25,810,042.71 = 12,081,525.75/x - Step 3: Cross multiply
18,693,023.19x = 25,810,042.71 × 12,081,525.75 - Step 4: Simplify right side
18,693,023.19x = 311,824,695,609,464.81 - Step 5: Solve for x
x = 311,824,695,609,464.81/18,693,023.19 - Step 6: Final answer
x = 16,681,341.08
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.