Finding the Fourth Proportional to 19,871,378.01, 27,418,477.86 and 11,609,843.40
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Solution
The fourth proportional to 19,871,378.01, 27,418,477.86 and 11,609,843.40 is: 16,019,232.99
Step by Step Solution
- Step 1: Write the proportion equation
19,871,378.01 : 27,418,477.86 = 11,609,843.40 : x - Step 2: Convert to fraction form
19,871,378.01/27,418,477.86 = 11,609,843.40/x - Step 3: Cross multiply
19,871,378.01x = 27,418,477.86 × 11,609,843.40 - Step 4: Simplify right side
19,871,378.01x = 318,324,234,220,967.12 - Step 5: Solve for x
x = 318,324,234,220,967.12/19,871,378.01 - Step 6: Final answer
x = 16,019,232.99
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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.