Finding the Fourth Proportional to 678,574,618.26, 936,508,799.49 and 410,797,991.75
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Solution
The fourth proportional to 678,574,618.26, 936,508,799.49 and 410,797,991.75 is: 566,947,132.61
Step by Step Solution
- Step 1: Write the proportion equation
678,574,618.26 : 936,508,799.49 = 410,797,991.75 : x - Step 2: Convert to fraction form
678,574,618.26/936,508,799.49 = 410,797,991.75/x - Step 3: Cross multiply
678,574,618.26x = 936,508,799.49 × 410,797,991.75 - Step 4: Simplify right side
678,574,618.26x = 384,715,934,082,012,864 - Step 5: Solve for x
x = 384,715,934,082,012,864/678,574,618.26 - Step 6: Final answer
x = 566,947,132.61
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1.5x scale
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.