Finding the Fourth Proportional to 19,987,728.96, 27,582,558.31 and 11,167,248.14
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Solution
The fourth proportional to 19,987,728.96, 27,582,558.31 and 11,167,248.14 is: 15,410,518.79
Step by Step Solution
- Step 1: Write the proportion equation
19,987,728.96 : 27,582,558.31 = 11,167,248.14 : x - Step 2: Convert to fraction form
19,987,728.96/27,582,558.31 = 11,167,248.14/x - Step 3: Cross multiply
19,987,728.96x = 27,582,558.31 × 11,167,248.14 - Step 4: Simplify right side
19,987,728.96x = 308,021,272,803,999.06 - Step 5: Solve for x
x = 308,021,272,803,999.06/19,987,728.96 - Step 6: Final answer
x = 15,410,518.79
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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.