Finding the Fourth Proportional to 324,315,635.13, 486,473,452.70 and 81,978,539.13
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Solution
The fourth proportional to 324,315,635.13, 486,473,452.70 and 81,978,539.13 is: 122,967,808.70
Step by Step Solution
- Step 1: Write the proportion equation
324,315,635.13 : 486,473,452.70 = 81,978,539.13 : x - Step 2: Convert to fraction form
324,315,635.13/486,473,452.70 = 81,978,539.13/x - Step 3: Cross multiply
324,315,635.13x = 486,473,452.70 × 81,978,539.13 - Step 4: Simplify right side
324,315,635.13x = 39,880,382,977,463,256 - Step 5: Solve for x
x = 39,880,382,977,463,256/324,315,635.13 - Step 6: Final answer
x = 122,967,808.70
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.