Finding the Fourth Proportional to 42,438,445.39, 63,530,786.49 and 25,991,944.99
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Solution
The fourth proportional to 42,438,445.39, 63,530,786.49 and 25,991,944.99 is: 38,910,207.30
Step by Step Solution
- Step 1: Write the proportion equation
42,438,445.39 : 63,530,786.49 = 25,991,944.99 : x - Step 2: Convert to fraction form
42,438,445.39/63,530,786.49 = 25,991,944.99/x - Step 3: Cross multiply
42,438,445.39x = 63,530,786.49 × 25,991,944.99 - Step 4: Simplify right side
42,438,445.39x = 1,651,288,707,619,515.25 - Step 5: Solve for x
x = 1,651,288,707,619,515.25/42,438,445.39 - Step 6: Final answer
x = 38,910,207.30
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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.