Finding the Fourth Proportional to 11,579,718.32, 15,981,927.84 and 6,424,740.62
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Solution
The fourth proportional to 11,579,718.32, 15,981,927.84 and 6,424,740.62 is: 8,867,205.41
Step by Step Solution
- Step 1: Write the proportion equation
11,579,718.32 : 15,981,927.84 = 6,424,740.62 : x - Step 2: Convert to fraction form
11,579,718.32/15,981,927.84 = 6,424,740.62/x - Step 3: Cross multiply
11,579,718.32x = 15,981,927.84 × 6,424,740.62 - Step 4: Simplify right side
11,579,718.32x = 102,679,740,979,556.86 - Step 5: Solve for x
x = 102,679,740,979,556.86/11,579,718.32 - Step 6: Final answer
x = 8,867,205.41
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1.5x scale
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.