Finding the Fourth Proportional to 9,660,838.46, 13,331,986.17 and 5,310,370.58
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Solution
The fourth proportional to 9,660,838.46, 13,331,986.17 and 5,310,370.58 is: 7,328,327.39
Step by Step Solution
- Step 1: Write the proportion equation
9,660,838.46 : 13,331,986.17 = 5,310,370.58 : x - Step 2: Convert to fraction form
9,660,838.46/13,331,986.17 = 5,310,370.58/x - Step 3: Cross multiply
9,660,838.46x = 13,331,986.17 × 5,310,370.58 - Step 4: Simplify right side
9,660,838.46x = 70,797,787,148,424.31 - Step 5: Solve for x
x = 70,797,787,148,424.31/9,660,838.46 - Step 6: Final answer
x = 7,328,327.39
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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.