Finding the Fourth Proportional to 8,917,811.91, 12,306,168.81 and 5,050,360.80
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Solution
The fourth proportional to 8,917,811.91, 12,306,168.81 and 5,050,360.80 is: 6,969,264.79
Step by Step Solution
- Step 1: Write the proportion equation
8,917,811.91 : 12,306,168.81 = 5,050,360.80 : x - Step 2: Convert to fraction form
8,917,811.91/12,306,168.81 = 5,050,360.80/x - Step 3: Cross multiply
8,917,811.91x = 12,306,168.81 × 5,050,360.80 - Step 4: Simplify right side
8,917,811.91x = 62,150,592,556,206.65 - Step 5: Solve for x
x = 62,150,592,556,206.65/8,917,811.91 - Step 6: Final answer
x = 6,969,264.79
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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.