Finding the Fourth Proportional to 559,872,800.80, 839,809,201.20 and 512,255,687.20
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Solution
The fourth proportional to 559,872,800.80, 839,809,201.20 and 512,255,687.20 is: 768,383,530.80
Step by Step Solution
- Step 1: Write the proportion equation
559,872,800.80 : 839,809,201.20 = 512,255,687.20 : x - Step 2: Convert to fraction form
559,872,800.80/839,809,201.20 = 512,255,687.20/x - Step 3: Cross multiply
559,872,800.80x = 839,809,201.20 × 512,255,687.20 - Step 4: Simplify right side
559,872,800.80x = 430,197,039,477,589,056 - Step 5: Solve for x
x = 430,197,039,477,589,056/559,872,800.80 - Step 6: Final answer
x = 768,383,530.80
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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.