Finding the Fourth Proportional to 7,378,117.20, 11,067,175.80 and 5,836,938.30
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Solution
The fourth proportional to 7,378,117.20, 11,067,175.80 and 5,836,938.30 is: 8,755,407.45
Step by Step Solution
- Step 1: Write the proportion equation
7,378,117.20 : 11,067,175.80 = 5,836,938.30 : x - Step 2: Convert to fraction form
7,378,117.20/11,067,175.80 = 5,836,938.30/x - Step 3: Cross multiply
7,378,117.20x = 11,067,175.80 × 5,836,938.30 - Step 4: Simplify right side
7,378,117.20x = 64,598,422,299,853.14 - Step 5: Solve for x
x = 64,598,422,299,853.14/7,378,117.20 - Step 6: Final answer
x = 8,755,407.45
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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.