Finding the Fourth Proportional to 5,172,264.44, 7,137,213.88 and 2,880,638.36
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Solution
The fourth proportional to 5,172,264.44, 7,137,213.88 and 2,880,638.36 is: 3,974,996.31
Step by Step Solution
- Step 1: Write the proportion equation
5,172,264.44 : 7,137,213.88 = 2,880,638.36 : x - Step 2: Convert to fraction form
5,172,264.44/7,137,213.88 = 2,880,638.36/x - Step 3: Cross multiply
5,172,264.44x = 7,137,213.88 × 2,880,638.36 - Step 4: Simplify right side
5,172,264.44x = 20,559,732,086,252.44 - Step 5: Solve for x
x = 20,559,732,086,252.44/5,172,264.44 - Step 6: Final answer
x = 3,974,996.31
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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.