Finding the Fourth Proportional to 11,512,067.76, 15,888,733.20 and 6,866,150.76
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Solution
The fourth proportional to 11,512,067.76, 15,888,733.20 and 6,866,150.76 is: 9,476,528.44
Step by Step Solution
- Step 1: Write the proportion equation
11,512,067.76 : 15,888,733.20 = 6,866,150.76 : x - Step 2: Convert to fraction form
11,512,067.76/15,888,733.20 = 6,866,150.76/x - Step 3: Cross multiply
11,512,067.76x = 15,888,733.20 × 6,866,150.76 - Step 4: Simplify right side
11,512,067.76x = 109,094,437,536,617.22 - Step 5: Solve for x
x = 109,094,437,536,617.22/11,512,067.76 - Step 6: Final answer
x = 9,476,528.44
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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.