Finding the Fourth Proportional to 36,169,378.99, 49,912,591.53 and 20,699,131.48
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Solution
The fourth proportional to 36,169,378.99, 49,912,591.53 and 20,699,131.48 is: 28,564,142.47
Step by Step Solution
- Step 1: Write the proportion equation
36,169,378.99 : 49,912,591.53 = 20,699,131.48 : x - Step 2: Convert to fraction form
36,169,378.99/49,912,591.53 = 20,699,131.48/x - Step 3: Cross multiply
36,169,378.99x = 49,912,591.53 × 20,699,131.48 - Step 4: Simplify right side
36,169,378.99x = 1,033,147,294,587,004.38 - Step 5: Solve for x
x = 1,033,147,294,587,004.38/36,169,378.99 - Step 6: Final answer
x = 28,564,142.47
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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.