Finding the Fourth Proportional to 386,052,868.26, 532,756,743.75 and 209,840,754.87
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Solution
The fourth proportional to 386,052,868.26, 532,756,743.75 and 209,840,754.87 is: 289,582,299.37
Step by Step Solution
- Step 1: Write the proportion equation
386,052,868.26 : 532,756,743.75 = 209,840,754.87 : x - Step 2: Convert to fraction form
386,052,868.26/532,756,743.75 = 209,840,754.87/x - Step 3: Cross multiply
386,052,868.26x = 532,756,743.75 × 209,840,754.87 - Step 4: Simplify right side
386,052,868.26x = 111,794,077,270,583,152 - Step 5: Solve for x
x = 111,794,077,270,583,152/386,052,868.26 - Step 6: Final answer
x = 289,582,299.37
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.