Finding the Fourth Proportional to 6,731,120.82, 9,288,909.99 and 3,675,313.20
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Solution
The fourth proportional to 6,731,120.82, 9,288,909.99 and 3,675,313.20 is: 5,071,912.15
Step by Step Solution
- Step 1: Write the proportion equation
6,731,120.82 : 9,288,909.99 = 3,675,313.20 : x - Step 2: Convert to fraction form
6,731,120.82/9,288,909.99 = 3,675,313.20/x - Step 3: Cross multiply
6,731,120.82x = 9,288,909.99 × 3,675,313.20 - Step 4: Simplify right side
6,731,120.82x = 34,139,653,499,858.87 - Step 5: Solve for x
x = 34,139,653,499,858.87/6,731,120.82 - Step 6: Final answer
x = 5,071,912.15
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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.