Finding the Fourth Proportional to 5,743,414.74, 7,925,913.99 and 3,129,919.55
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Solution
The fourth proportional to 5,743,414.74, 7,925,913.99 and 3,129,919.55 is: 4,319,289.88
Step by Step Solution
- Step 1: Write the proportion equation
5,743,414.74 : 7,925,913.99 = 3,129,919.55 : x - Step 2: Convert to fraction form
5,743,414.74/7,925,913.99 = 3,129,919.55/x - Step 3: Cross multiply
5,743,414.74x = 7,925,913.99 × 3,129,919.55 - Step 4: Simplify right side
5,743,414.74x = 24,807,473,133,269.91 - Step 5: Solve for x
x = 24,807,473,133,269.91/5,743,414.74 - Step 6: Final answer
x = 4,319,289.88
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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.