Finding the Fourth Proportional to 121,126,905.80, 181,690,358.70 and 88,602,716.60
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Solution
The fourth proportional to 121,126,905.80, 181,690,358.70 and 88,602,716.60 is: 132,904,074.90
Step by Step Solution
- Step 1: Write the proportion equation
121,126,905.80 : 181,690,358.70 = 88,602,716.60 : x - Step 2: Convert to fraction form
121,126,905.80/181,690,358.70 = 88,602,716.60/x - Step 3: Cross multiply
121,126,905.80x = 181,690,358.70 × 88,602,716.60 - Step 4: Simplify right side
121,126,905.80x = 16,098,259,360,848,442 - Step 5: Solve for x
x = 16,098,259,360,848,442/121,126,905.80 - Step 6: Final answer
x = 132,904,074.90
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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.