Finding the Fourth Proportional to 121,190,714.84, 167,243,373.60 and 68,979,749.96
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Solution
The fourth proportional to 121,190,714.84, 167,243,373.60 and 68,979,749.96 is: 95,192,161.45
Step by Step Solution
- Step 1: Write the proportion equation
121,190,714.84 : 167,243,373.60 = 68,979,749.96 : x - Step 2: Convert to fraction form
121,190,714.84/167,243,373.60 = 68,979,749.96/x - Step 3: Cross multiply
121,190,714.84x = 167,243,373.60 × 68,979,749.96 - Step 4: Simplify right side
121,190,714.84x = 11,536,406,093,394,864 - Step 5: Solve for x
x = 11,536,406,093,394,864/121,190,714.84 - Step 6: Final answer
x = 95,192,161.45
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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.