Finding the Fourth Proportional to 74,626,383.47, 111,912,806.32 and 28,581,197.99
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Solution
The fourth proportional to 74,626,383.47, 111,912,806.32 and 28,581,197.99 is: 42,861,544.75
Step by Step Solution
- Step 1: Write the proportion equation
74,626,383.47 : 111,912,806.32 = 28,581,197.99 : x - Step 2: Convert to fraction form
74,626,383.47/111,912,806.32 = 28,581,197.99/x - Step 3: Cross multiply
74,626,383.47x = 111,912,806.32 × 28,581,197.99 - Step 4: Simplify right side
74,626,383.47x = 3,198,602,074,417,426 - Step 5: Solve for x
x = 3,198,602,074,417,426/74,626,383.47 - Step 6: Final answer
x = 42,861,544.75
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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.