Finding the Fourth Proportional to 21,340,363.44, 29,449,698.84 and 11,550,805.68
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Solution
The fourth proportional to 21,340,363.44, 29,449,698.84 and 11,550,805.68 is: 15,940,110.37
Step by Step Solution
- Step 1: Write the proportion equation
21,340,363.44 : 29,449,698.84 = 11,550,805.68 : x - Step 2: Convert to fraction form
21,340,363.44/29,449,698.84 = 11,550,805.68/x - Step 3: Cross multiply
21,340,363.44x = 29,449,698.84 × 11,550,805.68 - Step 4: Simplify right side
21,340,363.44x = 340,167,748,635,361.38 - Step 5: Solve for x
x = 340,167,748,635,361.38/21,340,363.44 - Step 6: Final answer
x = 15,940,110.37
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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.