Finding the Fourth Proportional to 12,012,221.41, 18,021,403.49 and 3,492,557.88
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Solution
The fourth proportional to 12,012,221.41, 18,021,403.49 and 3,492,557.88 is: 5,239,729.82
Step by Step Solution
- Step 1: Write the proportion equation
12,012,221.41 : 18,021,403.49 = 3,492,557.88 : x - Step 2: Convert to fraction form
12,012,221.41/18,021,403.49 = 3,492,557.88/x - Step 3: Cross multiply
12,012,221.41x = 18,021,403.49 × 3,492,557.88 - Step 4: Simplify right side
12,012,221.41x = 62,940,794,767,658.99 - Step 5: Solve for x
x = 62,940,794,767,658.99/12,012,221.41 - Step 6: Final answer
x = 5,239,729.82
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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.