Finding the Fourth Proportional to 1,235,151,903.96, 1,704,511,682.37 and 678,270,232.80
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Solution
The fourth proportional to 1,235,151,903.96, 1,704,511,682.37 and 678,270,232.80 is: 936,014,049.69
Step by Step Solution
- Step 1: Write the proportion equation
1,235,151,903.96 : 1,704,511,682.37 = 678,270,232.80 : x - Step 2: Convert to fraction form
1,235,151,903.96/1,704,511,682.37 = 678,270,232.80/x - Step 3: Cross multiply
1,235,151,903.96x = 1,704,511,682.37 × 678,270,232.80 - Step 4: Simplify right side
1,235,151,903.96x = 1,156,119,535,611,419,392 - Step 5: Solve for x
x = 1,156,119,535,611,419,392/1,235,151,903.96 - Step 6: Final answer
x = 936,014,049.69
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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.