Finding the Fourth Proportional to 18,450,191.20, 27,651,278.40 and 7,507,625.80
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Solution
The fourth proportional to 18,450,191.20, 27,651,278.40 and 7,507,625.80 is: 11,251,669.37
Step by Step Solution
- Step 1: Write the proportion equation
18,450,191.20 : 27,651,278.40 = 7,507,625.80 : x - Step 2: Convert to fraction form
18,450,191.20/27,651,278.40 = 7,507,625.80/x - Step 3: Cross multiply
18,450,191.20x = 27,651,278.40 × 7,507,625.80 - Step 4: Simplify right side
18,450,191.20x = 207,595,451,118,822.72 - Step 5: Solve for x
x = 207,595,451,118,822.72/18,450,191.20 - Step 6: Final answer
x = 11,251,669.37
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.