Finding the Fourth Proportional to 290,664,816.48, 436,081,380.48 and 86,197,812.48
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Solution
The fourth proportional to 290,664,816.48, 436,081,380.48 and 86,197,812.48 is: 129,321,675.45
Step by Step Solution
- Step 1: Write the proportion equation
290,664,816.48 : 436,081,380.48 = 86,197,812.48 : x - Step 2: Convert to fraction form
290,664,816.48/436,081,380.48 = 86,197,812.48/x - Step 3: Cross multiply
290,664,816.48x = 436,081,380.48 × 86,197,812.48 - Step 4: Simplify right side
290,664,816.48x = 37,589,261,060,634,576 - Step 5: Solve for x
x = 37,589,261,060,634,576/290,664,816.48 - Step 6: Final answer
x = 129,321,675.45
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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.