Finding the Fourth Proportional to 315,474,977.70, 473,212,466.55 and 261,727,265.70
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Solution
The fourth proportional to 315,474,977.70, 473,212,466.55 and 261,727,265.70 is: 392,590,898.55
Step by Step Solution
- Step 1: Write the proportion equation
315,474,977.70 : 473,212,466.55 = 261,727,265.70 : x - Step 2: Convert to fraction form
315,474,977.70/473,212,466.55 = 261,727,265.70/x - Step 3: Cross multiply
315,474,977.70x = 473,212,466.55 × 261,727,265.70 - Step 4: Simplify right side
315,474,977.70x = 123,852,604,965,284,208 - Step 5: Solve for x
x = 123,852,604,965,284,208/315,474,977.70 - Step 6: Final answer
x = 392,590,898.55
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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.