Finding the Fourth Proportional to 121,639,180.14, 167,860,732.23 and 65,883,213.42
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Solution
The fourth proportional to 121,639,180.14, 167,860,732.23 and 65,883,213.42 is: 90,918,110.71
Step by Step Solution
- Step 1: Write the proportion equation
121,639,180.14 : 167,860,732.23 = 65,883,213.42 : x - Step 2: Convert to fraction form
121,639,180.14/167,860,732.23 = 65,883,213.42/x - Step 3: Cross multiply
121,639,180.14x = 167,860,732.23 × 65,883,213.42 - Step 4: Simplify right side
121,639,180.14x = 11,059,204,446,346,562 - Step 5: Solve for x
x = 11,059,204,446,346,562/121,639,180.14 - Step 6: Final answer
x = 90,918,110.71
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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.