Finding the Fourth Proportional to 221,268,947.03, 305,352,122.19 and 122,150,508.91
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Solution
The fourth proportional to 221,268,947.03, 305,352,122.19 and 122,150,508.91 is: 168,568,240.69
Step by Step Solution
- Step 1: Write the proportion equation
221,268,947.03 : 305,352,122.19 = 122,150,508.91 : x - Step 2: Convert to fraction form
221,268,947.03/305,352,122.19 = 122,150,508.91/x - Step 3: Cross multiply
221,268,947.03x = 305,352,122.19 × 122,150,508.91 - Step 4: Simplify right side
221,268,947.03x = 37,298,917,121,167,528 - Step 5: Solve for x
x = 37,298,917,121,167,528/221,268,947.03 - Step 6: Final answer
x = 168,568,240.69
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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.