Finding the Fourth Proportional to 518,412,745.82, 777,619,867.15 and 211,704,858.70
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Solution
The fourth proportional to 518,412,745.82, 777,619,867.15 and 211,704,858.70 is: 317,557,593.68
Step by Step Solution
- Step 1: Write the proportion equation
518,412,745.82 : 777,619,867.15 = 211,704,858.70 : x - Step 2: Convert to fraction form
518,412,745.82/777,619,867.15 = 211,704,858.70/x - Step 3: Cross multiply
518,412,745.82x = 777,619,867.15 × 211,704,858.70 - Step 4: Simplify right side
518,412,745.82x = 164,625,904,097,303,520 - Step 5: Solve for x
x = 164,625,904,097,303,520/518,412,745.82 - Step 6: Final answer
x = 317,557,593.68
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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.