Finding the Fourth Proportional to 50,720,140.44, 69,987,888.81 and 28,394,349
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Solution
The fourth proportional to 50,720,140.44, 69,987,888.81 and 28,394,349 is: 39,180,895.86
Step by Step Solution
- Step 1: Write the proportion equation
50,720,140.44 : 69,987,888.81 = 28,394,349 : x - Step 2: Convert to fraction form
50,720,140.44/69,987,888.81 = 28,394,349/x - Step 3: Cross multiply
50,720,140.44x = 69,987,888.81 × 28,394,349 - Step 4: Simplify right side
50,720,140.44x = 1,987,260,540,644,334.75 - Step 5: Solve for x
x = 1,987,260,540,644,334.75/50,720,140.44 - Step 6: Final answer
x = 39,180,895.86
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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.