Finding the Fourth Proportional to 440,122,075.80, 660,183,113.70 and 210,539,563.80
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Solution
The fourth proportional to 440,122,075.80, 660,183,113.70 and 210,539,563.80 is: 315,809,345.70
Step by Step Solution
- Step 1: Write the proportion equation
440,122,075.80 : 660,183,113.70 = 210,539,563.80 : x - Step 2: Convert to fraction form
440,122,075.80/660,183,113.70 = 210,539,563.80/x - Step 3: Cross multiply
440,122,075.80x = 660,183,113.70 × 210,539,563.80 - Step 4: Simplify right side
440,122,075.80x = 138,994,664,786,523,824 - Step 5: Solve for x
x = 138,994,664,786,523,824/440,122,075.80 - Step 6: Final answer
x = 315,809,345.70
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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.