Finding the Fourth Proportional to 32,131,639.45, 44,330,577.79 and 20,535,990.49
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Solution
The fourth proportional to 32,131,639.45, 44,330,577.79 and 20,535,990.49 is: 28,332,582.45
Step by Step Solution
- Step 1: Write the proportion equation
32,131,639.45 : 44,330,577.79 = 20,535,990.49 : x - Step 2: Convert to fraction form
32,131,639.45/44,330,577.79 = 20,535,990.49/x - Step 3: Cross multiply
32,131,639.45x = 44,330,577.79 × 20,535,990.49 - Step 4: Simplify right side
32,131,639.45x = 910,372,323,911,645.12 - Step 5: Solve for x
x = 910,372,323,911,645.12/32,131,639.45 - Step 6: Final answer
x = 28,332,582.45
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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.