Finding the Fourth Proportional to 1,358,135,989.70, 2,037,203,984.55 and 738,263,207.30
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Solution
The fourth proportional to 1,358,135,989.70, 2,037,203,984.55 and 738,263,207.30 is: 1,107,394,810.95
Step by Step Solution
- Step 1: Write the proportion equation
1,358,135,989.70 : 2,037,203,984.55 = 738,263,207.30 : x - Step 2: Convert to fraction form
1,358,135,989.70/2,037,203,984.55 = 738,263,207.30/x - Step 3: Cross multiply
1,358,135,989.70x = 2,037,203,984.55 × 738,263,207.30 - Step 4: Simplify right side
1,358,135,989.70x = 1,503,992,747,558,222,592 - Step 5: Solve for x
x = 1,503,992,747,558,222,592/1,358,135,989.70 - Step 6: Final answer
x = 1,107,394,810.95
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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.