Finding the Fourth Proportional to 121,784,505.05, 167,900,029.35 and 96,749,680.94
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Solution
The fourth proportional to 121,784,505.05, 167,900,029.35 and 96,749,680.94 is: 133,385,394.66
Step by Step Solution
- Step 1: Write the proportion equation
121,784,505.05 : 167,900,029.35 = 96,749,680.94 : x - Step 2: Convert to fraction form
121,784,505.05/167,900,029.35 = 96,749,680.94/x - Step 3: Cross multiply
121,784,505.05x = 167,900,029.35 × 96,749,680.94 - Step 4: Simplify right side
121,784,505.05x = 16,244,274,268,589,636 - Step 5: Solve for x
x = 16,244,274,268,589,636/121,784,505.05 - Step 6: Final answer
x = 133,385,394.66
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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.