Finding the Fourth Proportional to 21,376,650.23, 29,498,987.01 and 11,586,884.23
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Solution
The fourth proportional to 21,376,650.23, 29,498,987.01 and 11,586,884.23 is: 15,989,471.85
Step by Step Solution
- Step 1: Write the proportion equation
21,376,650.23 : 29,498,987.01 = 11,586,884.23 : x - Step 2: Convert to fraction form
21,376,650.23/29,498,987.01 = 11,586,884.23/x - Step 3: Cross multiply
21,376,650.23x = 29,498,987.01 × 11,586,884.23 - Step 4: Simplify right side
21,376,650.23x = 341,801,347,181,714.50 - Step 5: Solve for x
x = 341,801,347,181,714.50/21,376,650.23 - Step 6: Final answer
x = 15,989,471.85
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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.