Finding the Fourth Proportional to 216,516,949.11, 324,759,103.79 and 68,958,557.37
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Solution
The fourth proportional to 216,516,949.11, 324,759,103.79 and 68,958,557.37 is: 103,432,638.33
Step by Step Solution
- Step 1: Write the proportion equation
216,516,949.11 : 324,759,103.79 = 68,958,557.37 : x - Step 2: Convert to fraction form
216,516,949.11/324,759,103.79 = 68,958,557.37/x - Step 3: Cross multiply
216,516,949.11x = 324,759,103.79 × 68,958,557.37 - Step 4: Simplify right side
216,516,949.11x = 22,394,919,289,787,712 - Step 5: Solve for x
x = 22,394,919,289,787,712/216,516,949.11 - Step 6: Final answer
x = 103,432,638.33
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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.