Finding the Fourth Proportional to 171,934,212.20, 257,901,318.30 and 161,848,221.80
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Solution
The fourth proportional to 171,934,212.20, 257,901,318.30 and 161,848,221.80 is: 242,772,332.70
Step by Step Solution
- Step 1: Write the proportion equation
171,934,212.20 : 257,901,318.30 = 161,848,221.80 : x - Step 2: Convert to fraction form
171,934,212.20/257,901,318.30 = 161,848,221.80/x - Step 3: Cross multiply
171,934,212.20x = 257,901,318.30 × 161,848,221.80 - Step 4: Simplify right side
171,934,212.20x = 41,740,869,766,730,800 - Step 5: Solve for x
x = 41,740,869,766,730,800/171,934,212.20 - Step 6: Final answer
x = 242,772,332.70
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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.