Finding the Fourth Proportional to 7,296,393.88, 10,069,043.84 and 3,988,728.08
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Solution
The fourth proportional to 7,296,393.88, 10,069,043.84 and 3,988,728.08 is: 5,504,455.84
Step by Step Solution
- Step 1: Write the proportion equation
7,296,393.88 : 10,069,043.84 = 3,988,728.08 : x - Step 2: Convert to fraction form
7,296,393.88/10,069,043.84 = 3,988,728.08/x - Step 3: Cross multiply
7,296,393.88x = 10,069,043.84 × 3,988,728.08 - Step 4: Simplify right side
7,296,393.88x = 40,162,677,862,985.62 - Step 5: Solve for x
x = 40,162,677,862,985.62/7,296,393.88 - Step 6: Final answer
x = 5,504,455.84
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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.