Finding the Fourth Proportional to 726,379,669.18, 1,089,751,998.12 and 208,811,050.75
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Solution
The fourth proportional to 726,379,669.18, 1,089,751,998.12 and 208,811,050.75 is: 313,269,037.45
Step by Step Solution
- Step 1: Write the proportion equation
726,379,669.18 : 1,089,751,998.12 = 208,811,050.75 : x - Step 2: Convert to fraction form
726,379,669.18/1,089,751,998.12 = 208,811,050.75/x - Step 3: Cross multiply
726,379,669.18x = 1,089,751,998.12 × 208,811,050.75 - Step 4: Simplify right side
726,379,669.18x = 227,552,259,784,349,216 - Step 5: Solve for x
x = 227,552,259,784,349,216/726,379,669.18 - Step 6: Final answer
x = 313,269,037.45
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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.