Finding the Fourth Proportional to 78,682,564.96, 117,995,473.68 and 33,247,880.80
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Solution
The fourth proportional to 78,682,564.96, 117,995,473.68 and 33,247,880.80 is: 49,859,831.66
Step by Step Solution
- Step 1: Write the proportion equation
78,682,564.96 : 117,995,473.68 = 33,247,880.80 : x - Step 2: Convert to fraction form
78,682,564.96/117,995,473.68 = 33,247,880.80/x - Step 3: Cross multiply
78,682,564.96x = 117,995,473.68 × 33,247,880.80 - Step 4: Simplify right side
78,682,564.96x = 3,923,099,443,852,177.50 - Step 5: Solve for x
x = 3,923,099,443,852,177.50/78,682,564.96 - Step 6: Final answer
x = 49,859,831.66
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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.