Finding the Fourth Proportional to 19,351,761.12, 29,025,396.36 and 7,221,648.24
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Solution
The fourth proportional to 19,351,761.12, 29,025,396.36 and 7,221,648.24 is: 10,831,634.46
Step by Step Solution
- Step 1: Write the proportion equation
19,351,761.12 : 29,025,396.36 = 7,221,648.24 : x - Step 2: Convert to fraction form
19,351,761.12/29,025,396.36 = 7,221,648.24/x - Step 3: Cross multiply
19,351,761.12x = 29,025,396.36 × 7,221,648.24 - Step 4: Simplify right side
19,351,761.12x = 209,611,202,538,496.41 - Step 5: Solve for x
x = 209,611,202,538,496.41/19,351,761.12 - Step 6: Final answer
x = 10,831,634.46
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1.5x scale
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.