Finding the Fourth Proportional to 345,009,078.26, 517,211,286.50 and 129,749,491.70
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Solution
The fourth proportional to 345,009,078.26, 517,211,286.50 and 129,749,491.70 is: 194,510,538.28
Step by Step Solution
- Step 1: Write the proportion equation
345,009,078.26 : 517,211,286.50 = 129,749,491.70 : x - Step 2: Convert to fraction form
345,009,078.26/517,211,286.50 = 129,749,491.70/x - Step 3: Cross multiply
345,009,078.26x = 517,211,286.50 × 129,749,491.70 - Step 4: Simplify right side
345,009,078.26x = 67,107,901,522,292,008 - Step 5: Solve for x
x = 67,107,901,522,292,008/345,009,078.26 - Step 6: Final answer
x = 194,510,538.28
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.