Finding the Fourth Proportional to 83,667,129.38, 125,115,425.66 and 79,585,662.50
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Solution
The fourth proportional to 83,667,129.38, 125,115,425.66 and 79,585,662.50 is: 119,012,019.58
Step by Step Solution
- Step 1: Write the proportion equation
83,667,129.38 : 125,115,425.66 = 79,585,662.50 : x - Step 2: Convert to fraction form
83,667,129.38/125,115,425.66 = 79,585,662.50/x - Step 3: Cross multiply
83,667,129.38x = 125,115,425.66 × 79,585,662.50 - Step 4: Simplify right side
83,667,129.38x = 9,957,394,040,120,600 - Step 5: Solve for x
x = 9,957,394,040,120,600/83,667,129.38 - Step 6: Final answer
x = 119,012,019.58
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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.