Finding the Fourth Proportional to 7,025,331.99, 9,694,831.77 and 3,969,480.63
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Solution
The fourth proportional to 7,025,331.99, 9,694,831.77 and 3,969,480.63 is: 5,477,811.86
Step by Step Solution
- Step 1: Write the proportion equation
7,025,331.99 : 9,694,831.77 = 3,969,480.63 : x - Step 2: Convert to fraction form
7,025,331.99/9,694,831.77 = 3,969,480.63/x - Step 3: Cross multiply
7,025,331.99x = 9,694,831.77 × 3,969,480.63 - Step 4: Simplify right side
7,025,331.99x = 38,483,446,922,123.61 - Step 5: Solve for x
x = 38,483,446,922,123.61/7,025,331.99 - Step 6: Final answer
x = 5,477,811.86
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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.