Finding the Fourth Proportional to 7,429,915.11, 11,147,527.41 and 4,517,932.53
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Solution
The fourth proportional to 7,429,915.11, 11,147,527.41 and 4,517,932.53 is: 6,778,513.07
Step by Step Solution
- Step 1: Write the proportion equation
7,429,915.11 : 11,147,527.41 = 4,517,932.53 : x - Step 2: Convert to fraction form
7,429,915.11/11,147,527.41 = 4,517,932.53/x - Step 3: Cross multiply
7,429,915.11x = 11,147,527.41 × 4,517,932.53 - Step 4: Simplify right side
7,429,915.11x = 50,363,776,714,705.65 - Step 5: Solve for x
x = 50,363,776,714,705.65/7,429,915.11 - Step 6: Final answer
x = 6,778,513.07
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.