Finding the Fourth Proportional to 125,744,286.15, 173,497,431.36 and 105,703,478.67
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Solution
The fourth proportional to 125,744,286.15, 173,497,431.36 and 105,703,478.67 is: 145,845,847.92
Step by Step Solution
- Step 1: Write the proportion equation
125,744,286.15 : 173,497,431.36 = 105,703,478.67 : x - Step 2: Convert to fraction form
125,744,286.15/173,497,431.36 = 105,703,478.67/x - Step 3: Cross multiply
125,744,286.15x = 173,497,431.36 × 105,703,478.67 - Step 4: Simplify right side
125,744,286.15x = 18,339,282,035,315,776 - Step 5: Solve for x
x = 18,339,282,035,315,776/125,744,286.15 - Step 6: Final answer
x = 145,845,847.92
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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.