Finding the Fourth Proportional to 121,639,181.14, 167,860,733.61 and 65,883,214.42
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Solution
The fourth proportional to 121,639,181.14, 167,860,733.61 and 65,883,214.42 is: 90,918,112.09
Step by Step Solution
- Step 1: Write the proportion equation
121,639,181.14 : 167,860,733.61 = 65,883,214.42 : x - Step 2: Convert to fraction form
121,639,181.14/167,860,733.61 = 65,883,214.42/x - Step 3: Cross multiply
121,639,181.14x = 167,860,733.61 × 65,883,214.42 - Step 4: Simplify right side
121,639,181.14x = 11,059,204,705,126,132 - Step 5: Solve for x
x = 11,059,204,705,126,132/121,639,181.14 - Step 6: Final answer
x = 90,918,112.09
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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.