Finding the Fourth Proportional to 3,843,880.72, 5,304,666.11 and 2,125,111.95
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Solution
The fourth proportional to 3,843,880.72, 5,304,666.11 and 2,125,111.95 is: 2,932,715.70
Step by Step Solution
- Step 1: Write the proportion equation
3,843,880.72 : 5,304,666.11 = 2,125,111.95 : x - Step 2: Convert to fraction form
3,843,880.72/5,304,666.11 = 2,125,111.95/x - Step 3: Cross multiply
3,843,880.72x = 5,304,666.11 × 2,125,111.95 - Step 4: Simplify right side
3,843,880.72x = 11,273,009,330,495.46 - Step 5: Solve for x
x = 11,273,009,330,495.46/3,843,880.72 - Step 6: Final answer
x = 2,932,715.70
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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.