Finding the Fourth Proportional to 209,148,869.95, 313,117,475.97 and 157,550,778.81
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Solution
The fourth proportional to 209,148,869.95, 313,117,475.97 and 157,550,778.81 is: 235,869,800.35
Step by Step Solution
- Step 1: Write the proportion equation
209,148,869.95 : 313,117,475.97 = 157,550,778.81 : x - Step 2: Convert to fraction form
209,148,869.95/313,117,475.97 = 157,550,778.81/x - Step 3: Cross multiply
209,148,869.95x = 313,117,475.97 × 157,550,778.81 - Step 4: Simplify right side
209,148,869.95x = 49,331,902,198,094,968 - Step 5: Solve for x
x = 49,331,902,198,094,968/209,148,869.95 - Step 6: Final answer
x = 235,869,800.35
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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.