Finding the Fourth Proportional to 422,906,905.66, 634,390,932.75 and 177,016,240.84
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Solution
The fourth proportional to 422,906,905.66, 634,390,932.75 and 177,016,240.84 is: 265,537,158.74
Step by Step Solution
- Step 1: Write the proportion equation
422,906,905.66 : 634,390,932.75 = 177,016,240.84 : x - Step 2: Convert to fraction form
422,906,905.66/634,390,932.75 = 177,016,240.84/x - Step 3: Cross multiply
422,906,905.66x = 634,390,932.75 × 177,016,240.84 - Step 4: Simplify right side
422,906,905.66x = 112,297,498,138,386,240 - Step 5: Solve for x
x = 112,297,498,138,386,240/422,906,905.66 - Step 6: Final answer
x = 265,537,158.74
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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.