Finding the Fourth Proportional to 290,689,754.76, 435,859,004.97 and 115,839,687.96
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Solution
The fourth proportional to 290,689,754.76, 435,859,004.97 and 115,839,687.96 is: 173,689,544.62
Step by Step Solution
- Step 1: Write the proportion equation
290,689,754.76 : 435,859,004.97 = 115,839,687.96 : x - Step 2: Convert to fraction form
290,689,754.76/435,859,004.97 = 115,839,687.96/x - Step 3: Cross multiply
290,689,754.76x = 435,859,004.97 × 115,839,687.96 - Step 4: Simplify right side
290,689,754.76x = 50,489,771,130,280,888 - Step 5: Solve for x
x = 50,489,771,130,280,888/290,689,754.76 - Step 6: Final answer
x = 173,689,544.62
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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.