Finding the Fourth Proportional to 7,299,071.82, 10,072,658.07 and 4,202,202.06
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Solution
The fourth proportional to 7,299,071.82, 10,072,658.07 and 4,202,202.06 is: 5,799,003.70
Step by Step Solution
- Step 1: Write the proportion equation
7,299,071.82 : 10,072,658.07 = 4,202,202.06 : x - Step 2: Convert to fraction form
7,299,071.82/10,072,658.07 = 4,202,202.06/x - Step 3: Cross multiply
7,299,071.82x = 10,072,658.07 × 4,202,202.06 - Step 4: Simplify right side
7,299,071.82x = 42,327,344,491,429.62 - Step 5: Solve for x
x = 42,327,344,491,429.62/7,299,071.82 - Step 6: Final answer
x = 5,799,003.70
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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.