Finding the Fourth Proportional to 57,467,198.88, 79,306,414.20 and 31,363,392.06
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Solution
The fourth proportional to 57,467,198.88, 79,306,414.20 and 31,363,392.06 is: 43,282,397.78
Step by Step Solution
- Step 1: Write the proportion equation
57,467,198.88 : 79,306,414.20 = 31,363,392.06 : x - Step 2: Convert to fraction form
57,467,198.88/79,306,414.20 = 31,363,392.06/x - Step 3: Cross multiply
57,467,198.88x = 79,306,414.20 × 31,363,392.06 - Step 4: Simplify right side
57,467,198.88x = 2,487,318,161,427,351 - Step 5: Solve for x
x = 2,487,318,161,427,351/57,467,198.88 - Step 6: Final answer
x = 43,282,397.78
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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.