Finding the Fourth Proportional to 117,431,331.90, 176,146,997.85 and 85,014,743.10
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Solution
The fourth proportional to 117,431,331.90, 176,146,997.85 and 85,014,743.10 is: 127,522,114.65
Step by Step Solution
- Step 1: Write the proportion equation
117,431,331.90 : 176,146,997.85 = 85,014,743.10 : x - Step 2: Convert to fraction form
117,431,331.90/176,146,997.85 = 85,014,743.10/x - Step 3: Cross multiply
117,431,331.90x = 176,146,997.85 × 85,014,743.10 - Step 4: Simplify right side
117,431,331.90x = 14,975,091,770,054,000 - Step 5: Solve for x
x = 14,975,091,770,054,000/117,431,331.90 - Step 6: Final answer
x = 127,522,114.65
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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.