Finding the Fourth Proportional to 3,975,930.36, 5,486,639.90 and 2,429,778.74
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Solution
The fourth proportional to 3,975,930.36, 5,486,639.90 and 2,429,778.74 is: 3,353,006.65
Step by Step Solution
- Step 1: Write the proportion equation
3,975,930.36 : 5,486,639.90 = 2,429,778.74 : x - Step 2: Convert to fraction form
3,975,930.36/5,486,639.90 = 2,429,778.74/x - Step 3: Cross multiply
3,975,930.36x = 5,486,639.90 × 2,429,778.74 - Step 4: Simplify right side
3,975,930.36x = 13,331,320,943,473.63 - Step 5: Solve for x
x = 13,331,320,943,473.63/3,975,930.36 - Step 6: Final answer
x = 3,353,006.65
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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.