Finding the Fourth Proportional to 210,369,414.96, 290,338,632.06 and 121,059,523.71
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Solution
The fourth proportional to 210,369,414.96, 290,338,632.06 and 121,059,523.71 is: 167,078,738.70
Step by Step Solution
- Step 1: Write the proportion equation
210,369,414.96 : 290,338,632.06 = 121,059,523.71 : x - Step 2: Convert to fraction form
210,369,414.96/290,338,632.06 = 121,059,523.71/x - Step 3: Cross multiply
210,369,414.96x = 290,338,632.06 × 121,059,523.71 - Step 4: Simplify right side
210,369,414.96x = 35,148,256,511,796,536 - Step 5: Solve for x
x = 35,148,256,511,796,536/210,369,414.96 - Step 6: Final answer
x = 167,078,738.70
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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.