Finding the Fourth Proportional to 68,654,372.87, 94,652,880.76 and 49,542,899.79
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Solution
The fourth proportional to 68,654,372.87, 94,652,880.76 and 49,542,899.79 is: 68,304,144.23
Step by Step Solution
- Step 1: Write the proportion equation
68,654,372.87 : 94,652,880.76 = 49,542,899.79 : x - Step 2: Convert to fraction form
68,654,372.87/94,652,880.76 = 49,542,899.79/x - Step 3: Cross multiply
68,654,372.87x = 94,652,880.76 × 49,542,899.79 - Step 4: Simplify right side
68,654,372.87x = 4,689,378,186,110,749 - Step 5: Solve for x
x = 4,689,378,186,110,749/68,654,372.87 - Step 6: Final answer
x = 68,304,144.23
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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.