Finding the Fourth Proportional to 1,311,192,593.04, 1,809,450,481.77 and 716,477,065.05
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Solution
The fourth proportional to 1,311,192,593.04, 1,809,450,481.77 and 716,477,065.05 is: 988,740,919.84
Step by Step Solution
- Step 1: Write the proportion equation
1,311,192,593.04 : 1,809,450,481.77 = 716,477,065.05 : x - Step 2: Convert to fraction form
1,311,192,593.04/1,809,450,481.77 = 716,477,065.05/x - Step 3: Cross multiply
1,311,192,593.04x = 1,809,450,481.77 × 716,477,065.05 - Step 4: Simplify right side
1,311,192,593.04x = 1,296,429,770,531,878,144 - Step 5: Solve for x
x = 1,296,429,770,531,878,144/1,311,192,593.04 - Step 6: Final answer
x = 988,740,919.84
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1.5x scale
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.