Finding the Fourth Proportional to 18,418,138.32, 27,646,369.71 and 13,565,923.68
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Solution
The fourth proportional to 18,418,138.32, 27,646,369.71 and 13,565,923.68 is: 20,362,999.51
Step by Step Solution
- Step 1: Write the proportion equation
18,418,138.32 : 27,646,369.71 = 13,565,923.68 : x - Step 2: Convert to fraction form
18,418,138.32/27,646,369.71 = 13,565,923.68/x - Step 3: Cross multiply
18,418,138.32x = 27,646,369.71 × 13,565,923.68 - Step 4: Simplify right side
18,418,138.32x = 375,048,541,514,923.75 - Step 5: Solve for x
x = 375,048,541,514,923.75/18,418,138.32 - Step 6: Final answer
x = 20,362,999.51
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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.