Finding the Fourth Proportional to 7,905,082,853.70, 11,857,187,817.12 and 5,780,106,137.84
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Solution
The fourth proportional to 7,905,082,853.70, 11,857,187,817.12 and 5,780,106,137.84 is: 8,669,840,069.69
Step by Step Solution
- Step 1: Write the proportion equation
7,905,082,853.70 : 11,857,187,817.12 = 5,780,106,137.84 : x - Step 2: Convert to fraction form
7,905,082,853.70/11,857,187,817.12 = 5,780,106,137.84/x - Step 3: Cross multiply
7,905,082,853.70x = 11,857,187,817.12 × 5,780,106,137.84 - Step 4: Simplify right side
7,905,082,853.70x = 68,535,804,079,197,700,096 - Step 5: Solve for x
x = 68,535,804,079,197,700,096/7,905,082,853.70 - Step 6: Final answer
x = 8,669,840,069.69
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1.5x scale
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.