Finding the Fourth Proportional to 75,229,900.58, 103,721,155.47 and 48,721,414.37
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Solution
The fourth proportional to 75,229,900.58, 103,721,155.47 and 48,721,414.37 is: 67,173,309.49
Step by Step Solution
- Step 1: Write the proportion equation
75,229,900.58 : 103,721,155.47 = 48,721,414.37 : x - Step 2: Convert to fraction form
75,229,900.58/103,721,155.47 = 48,721,414.37/x - Step 3: Cross multiply
75,229,900.58x = 103,721,155.47 × 48,721,414.37 - Step 4: Simplify right side
75,229,900.58x = 5,053,441,394,589,062 - Step 5: Solve for x
x = 5,053,441,394,589,062/75,229,900.58 - Step 6: Final answer
x = 67,173,309.49
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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.