Finding the Fourth Proportional to 31,679,983.09, 43,718,714.99 and 19,456,840.09
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Solution
The fourth proportional to 31,679,983.09, 43,718,714.99 and 19,456,840.09 is: 26,850,647.11
Step by Step Solution
- Step 1: Write the proportion equation
31,679,983.09 : 43,718,714.99 = 19,456,840.09 : x - Step 2: Convert to fraction form
31,679,983.09/43,718,714.99 = 19,456,840.09/x - Step 3: Cross multiply
31,679,983.09x = 43,718,714.99 × 19,456,840.09 - Step 4: Simplify right side
31,679,983.09x = 850,628,046,500,716 - Step 5: Solve for x
x = 850,628,046,500,716/31,679,983.09 - Step 6: Final answer
x = 26,850,647.11
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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.