Finding the Fourth Proportional to 21,967,128.97, 30,314,477.73 and 12,043,847.99
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Solution
The fourth proportional to 21,967,128.97, 30,314,477.73 and 12,043,847.99 is: 16,620,422.37
Step by Step Solution
- Step 1: Write the proportion equation
21,967,128.97 : 30,314,477.73 = 12,043,847.99 : x - Step 2: Convert to fraction form
21,967,128.97/30,314,477.73 = 12,043,847.99/x - Step 3: Cross multiply
21,967,128.97x = 30,314,477.73 × 12,043,847.99 - Step 4: Simplify right side
21,967,128.97x = 365,102,961,676,360.25 - Step 5: Solve for x
x = 365,102,961,676,360.25/21,967,128.97 - Step 6: Final answer
x = 16,620,422.37
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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.