Finding the Fourth Proportional to 27,699,422.48, 38,227,181.06 and 15,309,249.64
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Solution
The fourth proportional to 27,699,422.48, 38,227,181.06 and 15,309,249.64 is: 21,127,857.75
Step by Step Solution
- Step 1: Write the proportion equation
27,699,422.48 : 38,227,181.06 = 15,309,249.64 : x - Step 2: Convert to fraction form
27,699,422.48/38,227,181.06 = 15,309,249.64/x - Step 3: Cross multiply
27,699,422.48x = 38,227,181.06 × 15,309,249.64 - Step 4: Simplify right side
27,699,422.48x = 585,229,457,881,019.88 - Step 5: Solve for x
x = 585,229,457,881,019.88/27,699,422.48 - Step 6: Final answer
x = 21,127,857.75
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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.