Finding the Fourth Proportional to 5,707,246.99, 7,876,496.54 and 3,129,425.99
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Solution
The fourth proportional to 5,707,246.99, 7,876,496.54 and 3,129,425.99 is: 4,318,879.67
Step by Step Solution
- Step 1: Write the proportion equation
5,707,246.99 : 7,876,496.54 = 3,129,425.99 : x - Step 2: Convert to fraction form
5,707,246.99/7,876,496.54 = 3,129,425.99/x - Step 3: Cross multiply
5,707,246.99x = 7,876,496.54 × 3,129,425.99 - Step 4: Simplify right side
5,707,246.99x = 24,648,912,982,421.08 - Step 5: Solve for x
x = 24,648,912,982,421.08/5,707,246.99 - Step 6: Final answer
x = 4,318,879.67
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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.