Finding the Fourth Proportional to 503,874,651.97, 695,645,296.20 and 447,965,647.41
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Solution
The fourth proportional to 503,874,651.97, 695,645,296.20 and 447,965,647.41 is: 618,457,773.70
Step by Step Solution
- Step 1: Write the proportion equation
503,874,651.97 : 695,645,296.20 = 447,965,647.41 : x - Step 2: Convert to fraction form
503,874,651.97/695,645,296.20 = 447,965,647.41/x - Step 3: Cross multiply
503,874,651.97x = 695,645,296.20 × 447,965,647.41 - Step 4: Simplify right side
503,874,651.97x = 311,625,195,479,954,240 - Step 5: Solve for x
x = 311,625,195,479,954,240/503,874,651.97 - Step 6: Final answer
x = 618,457,773.70
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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.