Finding the Fourth Proportional to 1,137,372,313.96, 1,569,106,392.42 and 691,263,794.44
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Solution
The fourth proportional to 1,137,372,313.96, 1,569,106,392.42 and 691,263,794.44 is: 953,659,962.87
Step by Step Solution
- Step 1: Write the proportion equation
1,137,372,313.96 : 1,569,106,392.42 = 691,263,794.44 : x - Step 2: Convert to fraction form
1,137,372,313.96/1,569,106,392.42 = 691,263,794.44/x - Step 3: Cross multiply
1,137,372,313.96x = 1,569,106,392.42 × 691,263,794.44 - Step 4: Simplify right side
1,137,372,313.96x = 1,084,666,438,704,308,992 - Step 5: Solve for x
x = 1,084,666,438,704,308,992/1,137,372,313.96 - Step 6: Final answer
x = 953,659,962.87
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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.