Finding the Fourth Proportional to 20,283,643.84, 27,993,439.20 and 11,583,137.92
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Solution
The fourth proportional to 20,283,643.84, 27,993,439.20 and 11,583,137.92 is: 15,985,878.56
Step by Step Solution
- Step 1: Write the proportion equation
20,283,643.84 : 27,993,439.20 = 11,583,137.92 : x - Step 2: Convert to fraction form
20,283,643.84/27,993,439.20 = 11,583,137.92/x - Step 3: Cross multiply
20,283,643.84x = 27,993,439.20 × 11,583,137.92 - Step 4: Simplify right side
20,283,643.84x = 324,251,867,108,734.44 - Step 5: Solve for x
x = 324,251,867,108,734.44/20,283,643.84 - Step 6: Final answer
x = 15,985,878.56
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1.5x scale
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.