Finding the Fourth Proportional to 14,689,175.20, 22,012,249.20 and 13,172,855.20
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Solution
The fourth proportional to 14,689,175.20, 22,012,249.20 and 13,172,855.20 is: 19,739,989.99
Step by Step Solution
- Step 1: Write the proportion equation
14,689,175.20 : 22,012,249.20 = 13,172,855.20 : x - Step 2: Convert to fraction form
14,689,175.20/22,012,249.20 = 13,172,855.20/x - Step 3: Cross multiply
14,689,175.20x = 22,012,249.20 × 13,172,855.20 - Step 4: Simplify right side
14,689,175.20x = 289,964,171,337,915.81 - Step 5: Solve for x
x = 289,964,171,337,915.81/14,689,175.20 - Step 6: Final answer
x = 19,739,989.99
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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.