Finding the Fourth Proportional to 13,676,934.68, 18,775,334.77 and 11,739,832.28
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Solution
The fourth proportional to 13,676,934.68, 18,775,334.77 and 11,739,832.28 is: 16,116,131.75
Step by Step Solution
- Step 1: Write the proportion equation
13,676,934.68 : 18,775,334.77 = 11,739,832.28 : x - Step 2: Convert to fraction form
13,676,934.68/18,775,334.77 = 11,739,832.28/x - Step 3: Cross multiply
13,676,934.68x = 18,775,334.77 × 11,739,832.28 - Step 4: Simplify right side
13,676,934.68x = 220,419,281,200,652.34 - Step 5: Solve for x
x = 220,419,281,200,652.34/13,676,934.68 - Step 6: Final answer
x = 16,116,131.75
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Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.