Finding the Fourth Proportional to 13,067,997.12, 18,034,274.24 and 7,187,880.08
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Solution
The fourth proportional to 13,067,997.12, 18,034,274.24 and 7,187,880.08 is: 9,919,515.54
Step by Step Solution
- Step 1: Write the proportion equation
13,067,997.12 : 18,034,274.24 = 7,187,880.08 : x - Step 2: Convert to fraction form
13,067,997.12/18,034,274.24 = 7,187,880.08/x - Step 3: Cross multiply
13,067,997.12x = 18,034,274.24 × 7,187,880.08 - Step 4: Simplify right side
13,067,997.12x = 129,628,200,566,953.12 - Step 5: Solve for x
x = 129,628,200,566,953.12/13,067,997.12 - Step 6: Final answer
x = 9,919,515.54
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1.5x scale
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.