Finding the Fourth Proportional to 19,379,867.94, 26,744,823.39 and 11,121,440.88
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Solution
The fourth proportional to 19,379,867.94, 26,744,823.39 and 11,121,440.88 is: 15,347,935.97
Step by Step Solution
- Step 1: Write the proportion equation
19,379,867.94 : 26,744,823.39 = 11,121,440.88 : x - Step 2: Convert to fraction form
19,379,867.94/26,744,823.39 = 11,121,440.88/x - Step 3: Cross multiply
19,379,867.94x = 26,744,823.39 × 11,121,440.88 - Step 4: Simplify right side
19,379,867.94x = 297,440,972,177,926.19 - Step 5: Solve for x
x = 297,440,972,177,926.19/19,379,867.94 - Step 6: Final answer
x = 15,347,935.97
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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.