Finding the Fourth Proportional to 290,005,733.73, 400,216,574.25 and 178,560,867.99
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Solution
The fourth proportional to 290,005,733.73, 400,216,574.25 and 178,560,867.99 is: 246,419,330.97
Step by Step Solution
- Step 1: Write the proportion equation
290,005,733.73 : 400,216,574.25 = 178,560,867.99 : x - Step 2: Convert to fraction form
290,005,733.73/400,216,574.25 = 178,560,867.99/x - Step 3: Cross multiply
290,005,733.73x = 400,216,574.25 × 178,560,867.99 - Step 4: Simplify right side
290,005,733.73x = 71,463,018,882,064,288 - Step 5: Solve for x
x = 71,463,018,882,064,288/290,005,733.73 - Step 6: Final answer
x = 246,419,330.97
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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.