Finding the Fourth Proportional to 118,346,147.70, 163,317,905.10 and 66,135,183.42
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Solution
The fourth proportional to 118,346,147.70, 163,317,905.10 and 66,135,183.42 is: 91,266,676.77
Step by Step Solution
- Step 1: Write the proportion equation
118,346,147.70 : 163,317,905.10 = 66,135,183.42 : x - Step 2: Convert to fraction form
118,346,147.70/163,317,905.10 = 66,135,183.42/x - Step 3: Cross multiply
118,346,147.70x = 163,317,905.10 × 66,135,183.42 - Step 4: Simplify right side
118,346,147.70x = 10,801,059,609,558,654 - Step 5: Solve for x
x = 10,801,059,609,558,654/118,346,147.70 - Step 6: Final answer
x = 91,266,676.77
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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.