Finding the Fourth Proportional to 28,410,854.99, 39,180,832.97 and 18,617,742.37
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Solution
The fourth proportional to 28,410,854.99, 39,180,832.97 and 18,617,742.37 is: 25,675,350.29
Step by Step Solution
- Step 1: Write the proportion equation
28,410,854.99 : 39,180,832.97 = 18,617,742.37 : x - Step 2: Convert to fraction form
28,410,854.99/39,180,832.97 = 18,617,742.37/x - Step 3: Cross multiply
28,410,854.99x = 39,180,832.97 × 18,617,742.37 - Step 4: Simplify right side
28,410,854.99x = 729,458,653,886,421.25 - Step 5: Solve for x
x = 729,458,653,886,421.25/28,410,854.99 - Step 6: Final answer
x = 25,675,350.29
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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.