Finding the Fourth Proportional to 521,603,998.20, 782,405,997.30 and 467,184,439.80
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Solution
The fourth proportional to 521,603,998.20, 782,405,997.30 and 467,184,439.80 is: 700,776,659.70
Step by Step Solution
- Step 1: Write the proportion equation
521,603,998.20 : 782,405,997.30 = 467,184,439.80 : x - Step 2: Convert to fraction form
521,603,998.20/782,405,997.30 = 467,184,439.80/x - Step 3: Cross multiply
521,603,998.20x = 782,405,997.30 × 467,184,439.80 - Step 4: Simplify right side
521,603,998.20x = 365,527,907,544,760,768 - Step 5: Solve for x
x = 365,527,907,544,760,768/521,603,998.20 - Step 6: Final answer
x = 700,776,659.70
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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.