Finding the Fourth Proportional to 19,618,899.84, 27,058,743.96 and 12,745,596.48
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Solution
The fourth proportional to 19,618,899.84, 27,058,743.96 and 12,745,596.48 is: 17,578,958.79
Step by Step Solution
- Step 1: Write the proportion equation
19,618,899.84 : 27,058,743.96 = 12,745,596.48 : x - Step 2: Convert to fraction form
19,618,899.84/27,058,743.96 = 12,745,596.48/x - Step 3: Cross multiply
19,618,899.84x = 27,058,743.96 × 12,745,596.48 - Step 4: Simplify right side
19,618,899.84x = 344,879,831,769,797.31 - Step 5: Solve for x
x = 344,879,831,769,797.31/19,618,899.84 - Step 6: Final answer
x = 17,578,958.79
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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.