Finding the Fourth Proportional to 21,448,353.72, 29,202,752.28 and 21,380,252.46
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Solution
The fourth proportional to 21,448,353.72, 29,202,752.28 and 21,380,252.46 is: 29,110,029.82
Step by Step Solution
- Step 1: Write the proportion equation
21,448,353.72 : 29,202,752.28 = 21,380,252.46 : x - Step 2: Convert to fraction form
21,448,353.72/29,202,752.28 = 21,380,252.46/x - Step 3: Cross multiply
21,448,353.72x = 29,202,752.28 × 21,380,252.46 - Step 4: Simplify right side
21,448,353.72x = 624,362,216,273,240.62 - Step 5: Solve for x
x = 624,362,216,273,240.62/21,448,353.72 - Step 6: Final answer
x = 29,110,029.82
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Why These Related Problems?
These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.