Finding the Fourth Proportional to 11,874,351.42, 16,386,479.79 and 6,647,402.56
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Solution
The fourth proportional to 11,874,351.42, 16,386,479.79 and 6,647,402.56 is: 9,173,345.46
Step by Step Solution
- Step 1: Write the proportion equation
11,874,351.42 : 16,386,479.79 = 6,647,402.56 : x - Step 2: Convert to fraction form
11,874,351.42/16,386,479.79 = 6,647,402.56/x - Step 3: Cross multiply
11,874,351.42x = 16,386,479.79 × 6,647,402.56 - Step 4: Simplify right side
11,874,351.42x = 108,927,527,670,264.97 - Step 5: Solve for x
x = 108,927,527,670,264.97/11,874,351.42 - Step 6: Final answer
x = 9,173,345.46
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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.