Finding the Fourth Proportional to 440,122,171.80, 660,183,257.70 and 210,539,659.80
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Solution
The fourth proportional to 440,122,171.80, 660,183,257.70 and 210,539,659.80 is: 315,809,489.70
Step by Step Solution
- Step 1: Write the proportion equation
440,122,171.80 : 660,183,257.70 = 210,539,659.80 : x - Step 2: Convert to fraction form
440,122,171.80/660,183,257.70 = 210,539,659.80/x - Step 3: Cross multiply
440,122,171.80x = 660,183,257.70 × 210,539,659.80 - Step 4: Simplify right side
440,122,171.80x = 138,994,758,481,813,744 - Step 5: Solve for x
x = 138,994,758,481,813,744/440,122,171.80 - Step 6: Final answer
x = 315,809,489.70
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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.