Finding the Fourth Proportional to 20,735,163.51, 28,615,107.14 and 11,443,319.49
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Solution
The fourth proportional to 20,735,163.51, 28,615,107.14 and 11,443,319.49 is: 15,792,101.81
Step by Step Solution
- Step 1: Write the proportion equation
20,735,163.51 : 28,615,107.14 = 11,443,319.49 : x - Step 2: Convert to fraction form
20,735,163.51/28,615,107.14 = 11,443,319.49/x - Step 3: Cross multiply
20,735,163.51x = 28,615,107.14 × 11,443,319.49 - Step 4: Simplify right side
20,735,163.51x = 327,451,813,243,600.19 - Step 5: Solve for x
x = 327,451,813,243,600.19/20,735,163.51 - Step 6: Final answer
x = 15,792,101.81
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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.