Finding the Fourth Proportional to 20,136,543.44, 27,786,358.68 and 11,314,593.68
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Solution
The fourth proportional to 20,136,543.44, 27,786,358.68 and 11,314,593.68 is: 15,612,975.45
Step by Step Solution
- Step 1: Write the proportion equation
20,136,543.44 : 27,786,358.68 = 11,314,593.68 : x - Step 2: Convert to fraction form
20,136,543.44/27,786,358.68 = 11,314,593.68/x - Step 3: Cross multiply
20,136,543.44x = 27,786,358.68 × 11,314,593.68 - Step 4: Simplify right side
20,136,543.44x = 314,391,358,310,941.12 - Step 5: Solve for x
x = 314,391,358,310,941.12/20,136,543.44 - Step 6: Final answer
x = 15,612,975.45
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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.