Finding the Fourth Proportional to 162,331,778.95, 243,351,859.39 and 79,286,545.51
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Solution
The fourth proportional to 162,331,778.95, 243,351,859.39 and 79,286,545.51 is: 118,858,601.80
Step by Step Solution
- Step 1: Write the proportion equation
162,331,778.95 : 243,351,859.39 = 79,286,545.51 : x - Step 2: Convert to fraction form
162,331,778.95/243,351,859.39 = 79,286,545.51/x - Step 3: Cross multiply
162,331,778.95x = 243,351,859.39 × 79,286,545.51 - Step 4: Simplify right side
162,331,778.95x = 19,294,528,274,107,348 - Step 5: Solve for x
x = 19,294,528,274,107,348/162,331,778.95 - Step 6: Final answer
x = 118,858,601.80
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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.