Finding the Fourth Proportional to 50,720,136.18, 69,987,882.95 and 28,394,344.75
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Solution
The fourth proportional to 50,720,136.18, 69,987,882.95 and 28,394,344.75 is: 39,180,890.00
Step by Step Solution
- Step 1: Write the proportion equation
50,720,136.18 : 69,987,882.95 = 28,394,344.75 : x - Step 2: Convert to fraction form
50,720,136.18/69,987,882.95 = 28,394,344.75/x - Step 3: Cross multiply
50,720,136.18x = 69,987,882.95 × 28,394,344.75 - Step 4: Simplify right side
50,720,136.18x = 1,987,260,076,313,035.75 - Step 5: Solve for x
x = 1,987,260,076,313,035.75/50,720,136.18 - Step 6: Final answer
x = 39,180,890.00
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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.