Finding the Fourth Proportional to 74,876,628.36, 103,330,431.18 and 43,937,313.24
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Solution
The fourth proportional to 74,876,628.36, 103,330,431.18 and 43,937,313.24 is: 60,633,893.67
Step by Step Solution
- Step 1: Write the proportion equation
74,876,628.36 : 103,330,431.18 = 43,937,313.24 : x - Step 2: Convert to fraction form
74,876,628.36/103,330,431.18 = 43,937,313.24/x - Step 3: Cross multiply
74,876,628.36x = 103,330,431.18 × 43,937,313.24 - Step 4: Simplify right side
74,876,628.36x = 4,540,061,521,979,923 - Step 5: Solve for x
x = 4,540,061,521,979,923/74,876,628.36 - Step 6: Final answer
x = 60,633,893.67
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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.