Finding the Fourth Proportional to 18,173,846.80, 27,275,641.80 and 18,032,129.20
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Solution
The fourth proportional to 18,173,846.80, 27,275,641.80 and 18,032,129.20 is: 27,062,949.43
Step by Step Solution
- Step 1: Write the proportion equation
18,173,846.80 : 27,275,641.80 = 18,032,129.20 : x - Step 2: Convert to fraction form
18,173,846.80/27,275,641.80 = 18,032,129.20/x - Step 3: Cross multiply
18,173,846.80x = 27,275,641.80 × 18,032,129.20 - Step 4: Simplify right side
18,173,846.80x = 491,837,896,950,520.56 - Step 5: Solve for x
x = 491,837,896,950,520.56/18,173,846.80 - Step 6: Final answer
x = 27,062,949.43
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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.