Finding the Fourth Proportional to 491,660,284.05, 678,471,000.39 and 268,649,620.79
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Solution
The fourth proportional to 491,660,284.05, 678,471,000.39 and 268,649,620.79 is: 370,725,443.73
Step by Step Solution
- Step 1: Write the proportion equation
491,660,284.05 : 678,471,000.39 = 268,649,620.79 : x - Step 2: Convert to fraction form
491,660,284.05/678,471,000.39 = 268,649,620.79/x - Step 3: Cross multiply
491,660,284.05x = 678,471,000.39 × 268,649,620.79 - Step 4: Simplify right side
491,660,284.05x = 182,270,976,968,393,088 - Step 5: Solve for x
x = 182,270,976,968,393,088/491,660,284.05 - Step 6: Final answer
x = 370,725,443.73
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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.