Finding the Fourth Proportional to 42,438,448.39, 63,530,790.99 and 25,991,947.99
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Solution
The fourth proportional to 42,438,448.39, 63,530,790.99 and 25,991,947.99 is: 38,910,211.80
Step by Step Solution
- Step 1: Write the proportion equation
42,438,448.39 : 63,530,790.99 = 25,991,947.99 : x - Step 2: Convert to fraction form
42,438,448.39/63,530,790.99 = 25,991,947.99/x - Step 3: Cross multiply
42,438,448.39x = 63,530,790.99 × 25,991,947.99 - Step 4: Simplify right side
42,438,448.39x = 1,651,289,015,175,640.50 - Step 5: Solve for x
x = 1,651,289,015,175,640.50/42,438,448.39 - Step 6: Final answer
x = 38,910,211.80
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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.