Finding the Fourth Proportional to 457,142,795.64, 685,728,414.42 and 217,515,217.68
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Solution
The fourth proportional to 457,142,795.64, 685,728,414.42 and 217,515,217.68 is: 326,279,593.06
Step by Step Solution
- Step 1: Write the proportion equation
457,142,795.64 : 685,728,414.42 = 217,515,217.68 : x - Step 2: Convert to fraction form
457,142,795.64/685,728,414.42 = 217,515,217.68/x - Step 3: Cross multiply
457,142,795.64x = 685,728,414.42 × 217,515,217.68 - Step 4: Simplify right side
457,142,795.64x = 149,156,365,331,927,552 - Step 5: Solve for x
x = 149,156,365,331,927,552/457,142,795.64 - Step 6: Final answer
x = 326,279,593.06
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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.