Finding the Fourth Proportional to 21,320,352.92, 29,422,088.25 and 11,530,794.44
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Solution
The fourth proportional to 21,320,352.92, 29,422,088.25 and 11,530,794.44 is: 15,912,496.99
Step by Step Solution
- Step 1: Write the proportion equation
21,320,352.92 : 29,422,088.25 = 11,530,794.44 : x - Step 2: Convert to fraction form
21,320,352.92/29,422,088.25 = 11,530,794.44/x - Step 3: Cross multiply
21,320,352.92x = 29,422,088.25 × 11,530,794.44 - Step 4: Simplify right side
21,320,352.92x = 339,260,051,606,289.31 - Step 5: Solve for x
x = 339,260,051,606,289.31/21,320,352.92 - Step 6: Final answer
x = 15,912,496.99
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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.