Finding the Fourth Proportional to 209,198,435.18, 288,685,171.40 and 113,829,337.69
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Solution
The fourth proportional to 209,198,435.18, 288,685,171.40 and 113,829,337.69 is: 157,079,768.94
Step by Step Solution
- Step 1: Write the proportion equation
209,198,435.18 : 288,685,171.40 = 113,829,337.69 : x - Step 2: Convert to fraction form
209,198,435.18/288,685,171.40 = 113,829,337.69/x - Step 3: Cross multiply
209,198,435.18x = 288,685,171.40 × 113,829,337.69 - Step 4: Simplify right side
209,198,435.18x = 32,860,841,860,095,268 - Step 5: Solve for x
x = 32,860,841,860,095,268/209,198,435.18 - Step 6: Final answer
x = 157,079,768.94
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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.