Finding the Fourth Proportional to 7,086,981.38, 9,783,057.29 and 4,765,219.65
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Solution
The fourth proportional to 7,086,981.38, 9,783,057.29 and 4,765,219.65 is: 6,578,035.75
Step by Step Solution
- Step 1: Write the proportion equation
7,086,981.38 : 9,783,057.29 = 4,765,219.65 : x - Step 2: Convert to fraction form
7,086,981.38/9,783,057.29 = 4,765,219.65/x - Step 3: Cross multiply
7,086,981.38x = 9,783,057.29 × 4,765,219.65 - Step 4: Simplify right side
7,086,981.38x = 46,618,416,811,557.66 - Step 5: Solve for x
x = 46,618,416,811,557.66/7,086,981.38 - Step 6: Final answer
x = 6,578,035.75
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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.