Finding the Fourth Proportional to 28,899,509.52, 39,848,633.64 and 18,431,524.08
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Solution
The fourth proportional to 28,899,509.52, 39,848,633.64 and 18,431,524.08 is: 25,414,654.53
Step by Step Solution
- Step 1: Write the proportion equation
28,899,509.52 : 39,848,633.64 = 18,431,524.08 : x - Step 2: Convert to fraction form
28,899,509.52/39,848,633.64 = 18,431,524.08/x - Step 3: Cross multiply
28,899,509.52x = 39,848,633.64 × 18,431,524.08 - Step 4: Simplify right side
28,899,509.52x = 734,471,050,490,758 - Step 5: Solve for x
x = 734,471,050,490,758/28,899,509.52 - Step 6: Final answer
x = 25,414,654.53
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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.