Finding the Fourth Proportional to 7,205,432.49, 9,942,514.82 and 4,304,207.49
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Solution
The fourth proportional to 7,205,432.49, 9,942,514.82 and 4,304,207.49 is: 5,939,219.72
Step by Step Solution
- Step 1: Write the proportion equation
7,205,432.49 : 9,942,514.82 = 4,304,207.49 : x - Step 2: Convert to fraction form
7,205,432.49/9,942,514.82 = 4,304,207.49/x - Step 3: Cross multiply
7,205,432.49x = 9,942,514.82 × 4,304,207.49 - Step 4: Simplify right side
7,205,432.49x = 42,794,646,736,158.96 - Step 5: Solve for x
x = 42,794,646,736,158.96/7,205,432.49 - Step 6: Final answer
x = 5,939,219.72
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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.