Finding the Fourth Proportional to 87,028,139.36, 120,107,641.28 and 49,863,349.33
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Solution
The fourth proportional to 87,028,139.36, 120,107,641.28 and 49,863,349.33 is: 68,816,469.22
Step by Step Solution
- Step 1: Write the proportion equation
87,028,139.36 : 120,107,641.28 = 49,863,349.33 : x - Step 2: Convert to fraction form
87,028,139.36/120,107,641.28 = 49,863,349.33/x - Step 3: Cross multiply
87,028,139.36x = 120,107,641.28 × 49,863,349.33 - Step 4: Simplify right side
87,028,139.36x = 5,988,969,273,497,114 - Step 5: Solve for x
x = 5,988,969,273,497,114/87,028,139.36 - Step 6: Final answer
x = 68,816,469.22
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.