Finding the Fourth Proportional to 290,926,245.25, 436,378,738.91 and 86,449,006.09
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Solution
The fourth proportional to 290,926,245.25, 436,378,738.91 and 86,449,006.09 is: 129,670,350.73
Step by Step Solution
- Step 1: Write the proportion equation
290,926,245.25 : 436,378,738.91 = 86,449,006.09 : x - Step 2: Convert to fraction form
290,926,245.25/436,378,738.91 = 86,449,006.09/x - Step 3: Cross multiply
290,926,245.25x = 436,378,738.91 × 86,449,006.09 - Step 4: Simplify right side
290,926,245.25x = 37,724,508,256,702,288 - Step 5: Solve for x
x = 37,724,508,256,702,288/290,926,245.25 - Step 6: Final answer
x = 129,670,350.73
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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.