Finding the Fourth Proportional to 419,345,652.83, 629,018,479.04 and 128,212,775.98
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Solution
The fourth proportional to 419,345,652.83, 629,018,479.04 and 128,212,775.98 is: 192,319,163.90
Step by Step Solution
- Step 1: Write the proportion equation
419,345,652.83 : 629,018,479.04 = 128,212,775.98 : x - Step 2: Convert to fraction form
419,345,652.83/629,018,479.04 = 128,212,775.98/x - Step 3: Cross multiply
419,345,652.83x = 629,018,479.04 × 128,212,775.98 - Step 4: Simplify right side
419,345,652.83x = 80,648,205,338,222,240 - Step 5: Solve for x
x = 80,648,205,338,222,240/419,345,652.83 - Step 6: Final answer
x = 192,319,163.90
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.