Finding the Fourth Proportional to 19,379,848.39, 26,744,796.88 and 11,121,421.70
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Solution
The fourth proportional to 19,379,848.39, 26,744,796.88 and 11,121,421.70 is: 15,347,909.77
Step by Step Solution
- Step 1: Write the proportion equation
19,379,848.39 : 26,744,796.88 = 11,121,421.70 : x - Step 2: Convert to fraction form
19,379,848.39/26,744,796.88 = 11,121,421.70/x - Step 3: Cross multiply
19,379,848.39x = 26,744,796.88 × 11,121,421.70 - Step 4: Simplify right side
19,379,848.39x = 297,440,164,422,382.75 - Step 5: Solve for x
x = 297,440,164,422,382.75/19,379,848.39 - Step 6: Final answer
x = 15,347,909.77
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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.