Finding the Fourth Proportional to 55,143,396.40, 82,718,205.12 and 16,806,161.20
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Solution
The fourth proportional to 55,143,396.40, 82,718,205.12 and 16,806,161.20 is: 25,210,189.80
Step by Step Solution
- Step 1: Write the proportion equation
55,143,396.40 : 82,718,205.12 = 16,806,161.20 : x - Step 2: Convert to fraction form
55,143,396.40/82,718,205.12 = 16,806,161.20/x - Step 3: Cross multiply
55,143,396.40x = 82,718,205.12 × 16,806,161.20 - Step 4: Simplify right side
55,143,396.40x = 1,390,175,489,421,385.25 - Step 5: Solve for x
x = 1,390,175,489,421,385.25/55,143,396.40 - Step 6: Final answer
x = 25,210,189.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.