Finding the Fourth Proportional to 21,410,130.75, 29,546,012.90 and 11,620,578.52
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Solution
The fourth proportional to 21,410,130.75, 29,546,012.90 and 11,620,578.52 is: 16,036,415.98
Step by Step Solution
- Step 1: Write the proportion equation
21,410,130.75 : 29,546,012.90 = 11,620,578.52 : x - Step 2: Convert to fraction form
21,410,130.75/29,546,012.90 = 11,620,578.52/x - Step 3: Cross multiply
21,410,130.75x = 29,546,012.90 × 11,620,578.52 - Step 4: Simplify right side
21,410,130.75x = 343,341,762,812,569.31 - Step 5: Solve for x
x = 343,341,762,812,569.31/21,410,130.75 - Step 6: Final answer
x = 16,036,415.98
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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.