Finding the Fourth Proportional to 220,940,251.09, 304,911,155.74 and 121,820,691.96
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Solution
The fourth proportional to 220,940,251.09, 304,911,155.74 and 121,820,691.96 is: 168,120,058.68
Step by Step Solution
- Step 1: Write the proportion equation
220,940,251.09 : 304,911,155.74 = 121,820,691.96 : x - Step 2: Convert to fraction form
220,940,251.09/304,911,155.74 = 121,820,691.96/x - Step 3: Cross multiply
220,940,251.09x = 304,911,155.74 × 121,820,691.96 - Step 4: Simplify right side
220,940,251.09x = 37,144,487,978,570,128 - Step 5: Solve for x
x = 37,144,487,978,570,128/220,940,251.09 - Step 6: Final answer
x = 168,120,058.68
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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.